-3x-20=-7x

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Solution for -3x-20=-7x equation:


Simplifying
-3x + -20 = -7x

Reorder the terms:
-20 + -3x = -7x

Solving
-20 + -3x = -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-20 + -3x + 7x = -7x + 7x

Combine like terms: -3x + 7x = 4x
-20 + 4x = -7x + 7x

Combine like terms: -7x + 7x = 0
-20 + 4x = 0

Add '20' to each side of the equation.
-20 + 20 + 4x = 0 + 20

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

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

Divide each side by '4'.
x = 5

Simplifying
x = 5

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