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3 years ago

_6. ifx-12 = -15, find the value of 4-X

Mathematics

1 answer:

melisa1 [442]3 years ago

8 0

First find the value of "x", by isolating/getting the variable "x" by itself in the equation:

x - 12 = -15 Add 12 on both sides to get "x" by itself in the equation

x - 12 + 12 = -15 + 12

x = -3

Now that you found the value of x, you can use it to find the value of 4 - x

4 - x Substitute/Plug in -3 for "x"

4 - (-3) [two negative signs cancel each other out and become positive]

4 + 3

7 The value of 4 - x is 7

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