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

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


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

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

Combine like terms: x + 3x = 4x
-4 + 4x = (-20)
-4 + 4x = -20

Solving
-4 + 4x = -20

Solving for variable 'x'.

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

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

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

Combine like terms: -20 + 4 = -16
4x = -16

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

Simplifying
x = -4

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