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 = -2x
-12 + -2x = 20

Solving
-12 + -2x = 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 + -2x = 20 + 12

Combine like terms: -12 + 12 = 0
0 + -2x = 20 + 12
-2x = 20 + 12

Combine like terms: 20 + 12 = 32
-2x = 32

Divide each side by '-2'.
x = -16

Simplifying
x = -16

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