x+18+21x=3x+9

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Solution for x+18+21x=3x+9 equation:


Simplifying
x + 18 + 21x = 3x + 9

Reorder the terms:
18 + x + 21x = 3x + 9

Combine like terms: x + 21x = 22x
18 + 22x = 3x + 9

Reorder the terms:
18 + 22x = 9 + 3x

Solving
18 + 22x = 9 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
18 + 22x + -3x = 9 + 3x + -3x

Combine like terms: 22x + -3x = 19x
18 + 19x = 9 + 3x + -3x

Combine like terms: 3x + -3x = 0
18 + 19x = 9 + 0
18 + 19x = 9

Add '-18' to each side of the equation.
18 + -18 + 19x = 9 + -18

Combine like terms: 18 + -18 = 0
0 + 19x = 9 + -18
19x = 9 + -18

Combine like terms: 9 + -18 = -9
19x = -9

Divide each side by '19'.
x = -0.4736842105

Simplifying
x = -0.4736842105

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