7x-(5x+7)=4x-15

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Solution for 7x-(5x+7)=4x-15 equation:


Simplifying
7x + -1(5x + 7) = 4x + -15

Reorder the terms:
7x + -1(7 + 5x) = 4x + -15
7x + (7 * -1 + 5x * -1) = 4x + -15
7x + (-7 + -5x) = 4x + -15

Reorder the terms:
-7 + 7x + -5x = 4x + -15

Combine like terms: 7x + -5x = 2x
-7 + 2x = 4x + -15

Reorder the terms:
-7 + 2x = -15 + 4x

Solving
-7 + 2x = -15 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-7 + 2x + -4x = -15 + 4x + -4x

Combine like terms: 2x + -4x = -2x
-7 + -2x = -15 + 4x + -4x

Combine like terms: 4x + -4x = 0
-7 + -2x = -15 + 0
-7 + -2x = -15

Add '7' to each side of the equation.
-7 + 7 + -2x = -15 + 7

Combine like terms: -7 + 7 = 0
0 + -2x = -15 + 7
-2x = -15 + 7

Combine like terms: -15 + 7 = -8
-2x = -8

Divide each side by '-2'.
x = 4

Simplifying
x = 4

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