x*4+51=x*8-9

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Solution for x*4+51=x*8-9 equation:


Simplifying
x * 4 + 51 = x * 8 + -9

Reorder the terms for easier multiplication:
4x + 51 = x * 8 + -9

Reorder the terms:
51 + 4x = x * 8 + -9

Reorder the terms for easier multiplication:
51 + 4x = 8x + -9

Reorder the terms:
51 + 4x = -9 + 8x

Solving
51 + 4x = -9 + 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.
51 + 4x + -8x = -9 + 8x + -8x

Combine like terms: 4x + -8x = -4x
51 + -4x = -9 + 8x + -8x

Combine like terms: 8x + -8x = 0
51 + -4x = -9 + 0
51 + -4x = -9

Add '-51' to each side of the equation.
51 + -51 + -4x = -9 + -51

Combine like terms: 51 + -51 = 0
0 + -4x = -9 + -51
-4x = -9 + -51

Combine like terms: -9 + -51 = -60
-4x = -60

Divide each side by '-4'.
x = 15

Simplifying
x = 15

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