-20-7x=40-12

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Solution for -20-7x=40-12 equation: 


Simplifying
-20 + -7x = 40 + -12

Combine like terms: 40 + -12 = 28
-20 + -7x = 28

Solving
-20 + -7x = 28

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + -7x = 28 + 20

Combine like terms: -20 + 20 = 0
0 + -7x = 28 + 20
-7x = 28 + 20

Combine like terms: 28 + 20 = 48
-7x = 48

Divide each side by '-7'.
x = -6.857142857

Simplifying
x = -6.857142857

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