4(x+(-7))+12=20

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Solution for 4(x+(-7))+12=20 equation: 


Simplifying
4(x + (-7)) + 12 = 20
4(x + -7) + 12 = 20

Reorder the terms:
4(-7 + x) + 12 = 20
(-7 * 4 + x * 4) + 12 = 20
(-28 + 4x) + 12 = 20

Reorder the terms:
-28 + 12 + 4x = 20

Combine like terms: -28 + 12 = -16
-16 + 4x = 20

Solving
-16 + 4x = 20

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + 4x = 20 + 16

Combine like terms: -16 + 16 = 0
0 + 4x = 20 + 16
4x = 20 + 16

Combine like terms: 20 + 16 = 36
4x = 36

Divide each side by '4'.
x = 9

Simplifying
x = 9

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