4x+4(x-7)=20

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


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

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

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

Combine like terms: 4x + 4x = 8x
-28 + 8x = 20

Solving
-28 + 8x = 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 + 8x = 20 + 28

Combine like terms: -28 + 28 = 0
0 + 8x = 20 + 28
8x = 20 + 28

Combine like terms: 20 + 28 = 48
8x = 48

Divide each side by '8'.
x = 6

Simplifying
x = 6

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