(18x+6)=(21x+15)

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Solution for (18x+6)=(21x+15) equation:


Simplifying
(18x + 6) = (21x + 15)

Reorder the terms:
(6 + 18x) = (21x + 15)

Remove parenthesis around (6 + 18x)
6 + 18x = (21x + 15)

Reorder the terms:
6 + 18x = (15 + 21x)

Remove parenthesis around (15 + 21x)
6 + 18x = 15 + 21x

Solving
6 + 18x = 15 + 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.
6 + 18x + -21x = 15 + 21x + -21x

Combine like terms: 18x + -21x = -3x
6 + -3x = 15 + 21x + -21x

Combine like terms: 21x + -21x = 0
6 + -3x = 15 + 0
6 + -3x = 15

Add '-6' to each side of the equation.
6 + -6 + -3x = 15 + -6

Combine like terms: 6 + -6 = 0
0 + -3x = 15 + -6
-3x = 15 + -6

Combine like terms: 15 + -6 = 9
-3x = 9

Divide each side by '-3'.
x = -3

Simplifying
x = -3

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