7x-15=5x-7

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Solution for 7x-15=5x-7 equation:


Simplifying
7x + -15 = 5x + -7

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

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

Solving
-15 + 7x = -7 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-15 + 7x + -5x = -7 + 5x + -5x

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

Combine like terms: 5x + -5x = 0
-15 + 2x = -7 + 0
-15 + 2x = -7

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

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

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

Divide each side by '2'.
x = 4

Simplifying
x = 4

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