3x-15=8x+7

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Solution for 3x-15=8x+7 equation:


Simplifying
3x + -15 = 8x + 7

Reorder the terms:
-15 + 3x = 8x + 7

Reorder the terms:
-15 + 3x = 7 + 8x

Solving
-15 + 3x = 7 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-15 + 3x + -8x = 7 + 8x + -8x

Combine like terms: 3x + -8x = -5x
-15 + -5x = 7 + 8x + -8x

Combine like terms: 8x + -8x = 0
-15 + -5x = 7 + 0
-15 + -5x = 7

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

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

Combine like terms: 7 + 15 = 22
-5x = 22

Divide each side by '-5'.
x = -4.4

Simplifying
x = -4.4

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