20=4(x+3)-4

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Solution for 20=4(x+3)-4 equation: 


Simplifying
20 = 4(x + 3) + -4

Reorder the terms:
20 = 4(3 + x) + -4
20 = (3 * 4 + x * 4) + -4
20 = (12 + 4x) + -4

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

Combine like terms: 12 + -4 = 8
20 = 8 + 4x

Solving
20 = 8 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
20 + -4x = 8 + 4x + -4x

Combine like terms: 4x + -4x = 0
20 + -4x = 8 + 0
20 + -4x = 8

Add '-20' to each side of the equation.
20 + -20 + -4x = 8 + -20

Combine like terms: 20 + -20 = 0
0 + -4x = 8 + -20
-4x = 8 + -20

Combine like terms: 8 + -20 = -12
-4x = -12

Divide each side by '-4'.
x = 3

Simplifying
x = 3

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