20x+13-12x=-43

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Solution for 20x+13-12x=-43 equation: 


Simplifying
20x + 13 + -12x = -43

Reorder the terms:
13 + 20x + -12x = -43

Combine like terms: 20x + -12x = 8x
13 + 8x = -43

Solving
13 + 8x = -43

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 8x = -43 + -13

Combine like terms: 13 + -13 = 0
0 + 8x = -43 + -13
8x = -43 + -13

Combine like terms: -43 + -13 = -56
8x = -56

Divide each side by '8'.
x = -7

Simplifying
x = -7

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