9x-(3x+7)=7x-15

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Solution for 9x-(3x+7)=7x-15 equation:


Simplifying
9x + -1(3x + 7) = 7x + -15

Reorder the terms:
9x + -1(7 + 3x) = 7x + -15
9x + (7 * -1 + 3x * -1) = 7x + -15
9x + (-7 + -3x) = 7x + -15

Reorder the terms:
-7 + 9x + -3x = 7x + -15

Combine like terms: 9x + -3x = 6x
-7 + 6x = 7x + -15

Reorder the terms:
-7 + 6x = -15 + 7x

Solving
-7 + 6x = -15 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-7 + 6x + -7x = -15 + 7x + -7x

Combine like terms: 6x + -7x = -1x
-7 + -1x = -15 + 7x + -7x

Combine like terms: 7x + -7x = 0
-7 + -1x = -15 + 0
-7 + -1x = -15

Add '7' to each side of the equation.
-7 + 7 + -1x = -15 + 7

Combine like terms: -7 + 7 = 0
0 + -1x = -15 + 7
-1x = -15 + 7

Combine like terms: -15 + 7 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

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