7x+18=5x+42

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Solution for 7x+18=5x+42 equation:


Simplifying
7x + 18 = 5x + 42

Reorder the terms:
18 + 7x = 5x + 42

Reorder the terms:
18 + 7x = 42 + 5x

Solving
18 + 7x = 42 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
18 + 7x + -5x = 42 + 5x + -5x

Combine like terms: 7x + -5x = 2x
18 + 2x = 42 + 5x + -5x

Combine like terms: 5x + -5x = 0
18 + 2x = 42 + 0
18 + 2x = 42

Add '-18' to each side of the equation.
18 + -18 + 2x = 42 + -18

Combine like terms: 18 + -18 = 0
0 + 2x = 42 + -18
2x = 42 + -18

Combine like terms: 42 + -18 = 24
2x = 24

Divide each side by '2'.
x = 12

Simplifying
x = 12

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