15x-51=8x-30

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Solution for 15x-51=8x-30 equation:


Simplifying
15x + -51 = 8x + -30

Reorder the terms:
-51 + 15x = 8x + -30

Reorder the terms:
-51 + 15x = -30 + 8x

Solving
-51 + 15x = -30 + 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 + 15x + -8x = -30 + 8x + -8x

Combine like terms: 15x + -8x = 7x
-51 + 7x = -30 + 8x + -8x

Combine like terms: 8x + -8x = 0
-51 + 7x = -30 + 0
-51 + 7x = -30

Add '51' to each side of the equation.
-51 + 51 + 7x = -30 + 51

Combine like terms: -51 + 51 = 0
0 + 7x = -30 + 51
7x = -30 + 51

Combine like terms: -30 + 51 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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