12x-1=8x+15

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Solution for 12x-1=8x+15 equation:


Simplifying
12x + -1 = 8x + 15

Reorder the terms:
-1 + 12x = 8x + 15

Reorder the terms:
-1 + 12x = 15 + 8x

Solving
-1 + 12x = 15 + 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.
-1 + 12x + -8x = 15 + 8x + -8x

Combine like terms: 12x + -8x = 4x
-1 + 4x = 15 + 8x + -8x

Combine like terms: 8x + -8x = 0
-1 + 4x = 15 + 0
-1 + 4x = 15

Add '1' to each side of the equation.
-1 + 1 + 4x = 15 + 1

Combine like terms: -1 + 1 = 0
0 + 4x = 15 + 1
4x = 15 + 1

Combine like terms: 15 + 1 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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