30+2x=40

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Solution for 30+2x=40 equation: 


Simplifying
30 + 2x = 40

Solving
30 + 2x = 40

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 2x = 40 + -30

Combine like terms: 30 + -30 = 0
0 + 2x = 40 + -30
2x = 40 + -30

Combine like terms: 40 + -30 = 10
2x = 10

Divide each side by '2'.
x = 5

Simplifying
x = 5

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