18+42x=144

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Solution for 18+42x=144 equation: 


Simplifying
18 + 42x = 144

Solving
18 + 42x = 144

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 + 42x = 144 + -18

Combine like terms: 18 + -18 = 0
0 + 42x = 144 + -18
42x = 144 + -18

Combine like terms: 144 + -18 = 126
42x = 126

Divide each side by '42'.
x = 3

Simplifying
x = 3

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