3(x+8)-4x=20

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Solution for 3(x+8)-4x=20 equation:


Simplifying
3(x + 8) + -4x = 20

Reorder the terms:
3(8 + x) + -4x = 20
(8 * 3 + x * 3) + -4x = 20
(24 + 3x) + -4x = 20

Combine like terms: 3x + -4x = -1x
24 + -1x = 20

Solving
24 + -1x = 20

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + -1x = 20 + -24

Combine like terms: 24 + -24 = 0
0 + -1x = 20 + -24
-1x = 20 + -24

Combine like terms: 20 + -24 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

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