-10x-3-2.5x+20=57

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Solution for -10x-3-2.5x+20=57 equation:


Simplifying
-10x + -3 + -2.5x + 20 = 57

Reorder the terms:
-3 + 20 + -10x + -2.5x = 57

Combine like terms: -3 + 20 = 17
17 + -10x + -2.5x = 57

Combine like terms: -10x + -2.5x = -12.5x
17 + -12.5x = 57

Solving
17 + -12.5x = 57

Solving for variable 'x'.

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

Add '-17' to each side of the equation.
17 + -17 + -12.5x = 57 + -17

Combine like terms: 17 + -17 = 0
0 + -12.5x = 57 + -17
-12.5x = 57 + -17

Combine like terms: 57 + -17 = 40
-12.5x = 40

Divide each side by '-12.5'.
x = -3.2

Simplifying
x = -3.2

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