4(7-4x)=-20

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


Simplifying
4(7 + -4x) = -20
(7 * 4 + -4x * 4) = -20
(28 + -16x) = -20

Solving
28 + -16x = -20

Solving for variable 'x'.

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

Add '-28' to each side of the equation.
28 + -28 + -16x = -20 + -28

Combine like terms: 28 + -28 = 0
0 + -16x = -20 + -28
-16x = -20 + -28

Combine like terms: -20 + -28 = -48
-16x = -48

Divide each side by '-16'.
x = 3

Simplifying
x = 3

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