3x-20=40

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Solution for 3x-20=40 equation: 


Simplifying
3x + -20 = 40

Reorder the terms:
-20 + 3x = 40

Solving
-20 + 3x = 40

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + 20 + 3x = 40 + 20

Combine like terms: -20 + 20 = 0
0 + 3x = 40 + 20
3x = 40 + 20

Combine like terms: 40 + 20 = 60
3x = 60

Divide each side by '3'.
x = 20

Simplifying
x = 20

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