15+3x=5x+7

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Solution for 15+3x=5x+7 equation:


Simplifying
15 + 3x = 5x + 7

Reorder the terms:
15 + 3x = 7 + 5x

Solving
15 + 3x = 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 + 3x + -5x = 7 + 5x + -5x

Combine like terms: 3x + -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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