4(x+12)+4x=640

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Solution for 4(x+12)+4x=640 equation:


Simplifying
4(x + 12) + 4x = 640

Reorder the terms:
4(12 + x) + 4x = 640
(12 * 4 + x * 4) + 4x = 640
(48 + 4x) + 4x = 640

Combine like terms: 4x + 4x = 8x
48 + 8x = 640

Solving
48 + 8x = 640

Solving for variable 'x'.

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

Add '-48' to each side of the equation.
48 + -48 + 8x = 640 + -48

Combine like terms: 48 + -48 = 0
0 + 8x = 640 + -48
8x = 640 + -48

Combine like terms: 640 + -48 = 592
8x = 592

Divide each side by '8'.
x = 74

Simplifying
x = 74

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