57+7x=-213-8x

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Solution for 57+7x=-213-8x equation:


Simplifying
57 + 7x = -213 + -8x

Solving
57 + 7x = -213 + -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.
57 + 7x + 8x = -213 + -8x + 8x

Combine like terms: 7x + 8x = 15x
57 + 15x = -213 + -8x + 8x

Combine like terms: -8x + 8x = 0
57 + 15x = -213 + 0
57 + 15x = -213

Add '-57' to each side of the equation.
57 + -57 + 15x = -213 + -57

Combine like terms: 57 + -57 = 0
0 + 15x = -213 + -57
15x = -213 + -57

Combine like terms: -213 + -57 = -270
15x = -270

Divide each side by '15'.
x = -18

Simplifying
x = -18

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