-3x=-21x+144

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Solution for -3x=-21x+144 equation: 


Simplifying
-3x = -21x + 144

Reorder the terms:
-3x = 144 + -21x

Solving
-3x = 144 + -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
-3x + 21x = 144 + -21x + 21x

Combine like terms: -3x + 21x = 18x
18x = 144 + -21x + 21x

Combine like terms: -21x + 21x = 0
18x = 144 + 0
18x = 144

Divide each side by '18'.
x = 8

Simplifying
x = 8

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