8x-8=15x-21

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Solution for 8x-8=15x-21 equation:


Simplifying
8x + -8 = 15x + -21

Reorder the terms:
-8 + 8x = 15x + -21

Reorder the terms:
-8 + 8x = -21 + 15x

Solving
-8 + 8x = -21 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
-8 + 8x + -15x = -21 + 15x + -15x

Combine like terms: 8x + -15x = -7x
-8 + -7x = -21 + 15x + -15x

Combine like terms: 15x + -15x = 0
-8 + -7x = -21 + 0
-8 + -7x = -21

Add '8' to each side of the equation.
-8 + 8 + -7x = -21 + 8

Combine like terms: -8 + 8 = 0
0 + -7x = -21 + 8
-7x = -21 + 8

Combine like terms: -21 + 8 = -13
-7x = -13

Divide each side by '-7'.
x = 1.857142857

Simplifying
x = 1.857142857

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