x+3(x-4)=20

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


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

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

Reorder the terms:
-12 + x + 3x = 20

Combine like terms: x + 3x = 4x
-12 + 4x = 20

Solving
-12 + 4x = 20

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 4x = 20 + 12

Combine like terms: -12 + 12 = 0
0 + 4x = 20 + 12
4x = 20 + 12

Combine like terms: 20 + 12 = 32
4x = 32

Divide each side by '4'.
x = 8

Simplifying
x = 8

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