8x-30+4x-9=57

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Solution for 8x-30+4x-9=57 equation:


Simplifying
8x + -30 + 4x + -9 = 57

Reorder the terms:
-30 + -9 + 8x + 4x = 57

Combine like terms: -30 + -9 = -39
-39 + 8x + 4x = 57

Combine like terms: 8x + 4x = 12x
-39 + 12x = 57

Solving
-39 + 12x = 57

Solving for variable 'x'.

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

Add '39' to each side of the equation.
-39 + 39 + 12x = 57 + 39

Combine like terms: -39 + 39 = 0
0 + 12x = 57 + 39
12x = 57 + 39

Combine like terms: 57 + 39 = 96
12x = 96

Divide each side by '12'.
x = 8

Simplifying
x = 8

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