-15=x-9+(-7)

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Solution for -15=x-9+(-7) equation:


Simplifying
-15 = x + -9 + (-7)
-15 = x + -9 + -7

Reorder the terms:
-15 = -9 + -7 + x

Combine like terms: -9 + -7 = -16
-15 = -16 + x

Solving
-15 = -16 + x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
-15 + -1x = -16 + x + -1x

Combine like terms: x + -1x = 0
-15 + -1x = -16 + 0
-15 + -1x = -16

Add '15' to each side of the equation.
-15 + 15 + -1x = -16 + 15

Combine like terms: -15 + 15 = 0
0 + -1x = -16 + 15
-1x = -16 + 15

Combine like terms: -16 + 15 = -1
-1x = -1

Divide each side by '-1'.
x = 1

Simplifying
x = 1

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