4x-40=80

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Solution for 4x-40=80 equation: 


Simplifying
4x + -40 = 80

Reorder the terms:
-40 + 4x = 80

Solving
-40 + 4x = 80

Solving for variable 'x'.

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

Add '40' to each side of the equation.
-40 + 40 + 4x = 80 + 40

Combine like terms: -40 + 40 = 0
0 + 4x = 80 + 40
4x = 80 + 40

Combine like terms: 80 + 40 = 120
4x = 120

Divide each side by '4'.
x = 30

Simplifying
x = 30

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