2x+18=78

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Solution for 2x+18=78 equation: 


Simplifying
2x + 18 = 78

Reorder the terms:
18 + 2x = 78

Solving
18 + 2x = 78

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 2x = 78 + -18

Combine like terms: 18 + -18 = 0
0 + 2x = 78 + -18
2x = 78 + -18

Combine like terms: 78 + -18 = 60
2x = 60

Divide each side by '2'.
x = 30

Simplifying
x = 30

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