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29 Маусым 2021
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0 рет жүктелгенТегін турнир Мұғалімдер мен Тәрбиешілерге
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Материалдың қысқаша түсінігі
1 слайд
Dauzhigit
Nurdaulet
2 iHow to
find
unknown
numbers
1 слайд
Dauzhigit Nurdaulet 2 iHow to find unknown numbers
2 слайд
Solving equations is the bread and butter of
mathematics. Adding, subtracting, multiplying
and dividing numbers are necessary elements of
computation, but the real magic lies in being
able to find an unknown number given sufficient
numerical information to carry this out.
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Solving equations is the bread and butter of mathematics. Adding, subtracting, multiplying and dividing numbers are necessary elements of computation, but the real magic lies in being able to find an unknown number given sufficient numerical information to carry this out.
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Equations contain
variables, which are letters or
other non-numerical symbols
representing values it is up to
you to determine. The
complexity and depth of
understanding required to
solve equations ranges from
basic arithmetic to higher-
level calculus, but finding the
missing number is the goal
every time.
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Equations contain variables, which are letters or other non-numerical symbols representing values it is up to you to determine. The complexity and depth of understanding required to solve equations ranges from basic arithmetic to higher- level calculus, but finding the missing number is the goal every time.
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The One-Variable Equation
In these problems, you are looking for a
unique solution to a problem. For example:
2x + 8 = 382x+8=38
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The One-Variable Equation In these problems, you are looking for a unique solution to a problem. For example: 2x + 8 = 382x+8=38
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The next step is to get the variable by
itself by stripping it of coefficients, which
requires division or multiplication. Here,
divide each side by 2 to get:
x = 15x=15
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The next step is to get the variable by itself by stripping it of coefficients, which requires division or multiplication. Here, divide each side by 2 to get: x = 15x=15
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The Simple Two-Variable
Equation
In these equations, you
are actually looking not for a
single number but a set of
numbers, that is, a range of
x-values that correspond to a
range of y-values to yield a
solution that is a curve or a
line on a graph not a single
point. For example, given:
y = 6x + 9y=6x+9
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The Simple Two-Variable Equation In these equations, you are actually looking not for a single number but a set of numbers, that is, a range of x-values that correspond to a range of y-values to yield a solution that is a curve or a line on a graph not a single point. For example, given: y = 6x + 9y=6x+9
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You can start by plugging in x-values of your choice. It is
convenient to start with 0 and work up and then down by units of
1. This gives
y = (6 × 0) + 9 = 9 \\ y = (6 × 1) + 9 = 15 \\ y =
(6 × 2) + 9 =
21y=(6×0)+9=9y=(6×1)+9=15y=(6×2)+9=21
And so on. You can then plot the graph of this equation, or
function, if you wish.
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You can start by plugging in x-values of your choice. It is convenient to start with 0 and work up and then down by units of 1. This gives y = (6 × 0) + 9 = 9 \\ y = (6 × 1) + 9 = 15 \\ y = (6 × 2) + 9 = 21y=(6×0)+9=9y=(6×1)+9=15y=(6×2)+9=21 And so on. You can then plot the graph of this equation, or function, if you wish.
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THANKS FOR YOUR ATTENTION
8 слайд
THANKS FOR YOUR ATTENTION
