x+18=3(12-7x)

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Solution for x+18=3(12-7x) equation:


Simplifying
x + 18 = 3(12 + -7x)

Reorder the terms:
18 + x = 3(12 + -7x)
18 + x = (12 * 3 + -7x * 3)
18 + x = (36 + -21x)

Solving
18 + x = 36 + -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
18 + x + 21x = 36 + -21x + 21x

Combine like terms: x + 21x = 22x
18 + 22x = 36 + -21x + 21x

Combine like terms: -21x + 21x = 0
18 + 22x = 36 + 0
18 + 22x = 36

Add '-18' to each side of the equation.
18 + -18 + 22x = 36 + -18

Combine like terms: 18 + -18 = 0
0 + 22x = 36 + -18
22x = 36 + -18

Combine like terms: 36 + -18 = 18
22x = 18

Divide each side by '22'.
x = 0.8181818182

Simplifying
x = 0.8181818182

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