20+9-2x+5x=-57

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Solution for 20+9-2x+5x=-57 equation:


Simplifying
20 + 9 + -2x + 5x = -57

Combine like terms: 20 + 9 = 29
29 + -2x + 5x = -57

Combine like terms: -2x + 5x = 3x
29 + 3x = -57

Solving
29 + 3x = -57

Solving for variable 'x'.

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

Add '-29' to each side of the equation.
29 + -29 + 3x = -57 + -29

Combine like terms: 29 + -29 = 0
0 + 3x = -57 + -29
3x = -57 + -29

Combine like terms: -57 + -29 = -86
3x = -86

Divide each side by '3'.
x = -28.66666667

Simplifying
x = -28.66666667

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