3x+15=18x-9

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Solution for 3x+15=18x-9 equation:


Simplifying
3x + 15 = 18x + -9

Reorder the terms:
15 + 3x = 18x + -9

Reorder the terms:
15 + 3x = -9 + 18x

Solving
15 + 3x = -9 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
15 + 3x + -18x = -9 + 18x + -18x

Combine like terms: 3x + -18x = -15x
15 + -15x = -9 + 18x + -18x

Combine like terms: 18x + -18x = 0
15 + -15x = -9 + 0
15 + -15x = -9

Add '-15' to each side of the equation.
15 + -15 + -15x = -9 + -15

Combine like terms: 15 + -15 = 0
0 + -15x = -9 + -15
-15x = -9 + -15

Combine like terms: -9 + -15 = -24
-15x = -24

Divide each side by '-15'.
x = 1.6

Simplifying
x = 1.6

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