3x+15=9x+30

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Solution for 3x+15=9x+30 equation:


Simplifying
3x + 15 = 9x + 30

Reorder the terms:
15 + 3x = 9x + 30

Reorder the terms:
15 + 3x = 30 + 9x

Solving
15 + 3x = 30 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
15 + 3x + -9x = 30 + 9x + -9x

Combine like terms: 3x + -9x = -6x
15 + -6x = 30 + 9x + -9x

Combine like terms: 9x + -9x = 0
15 + -6x = 30 + 0
15 + -6x = 30

Add '-15' to each side of the equation.
15 + -15 + -6x = 30 + -15

Combine like terms: 15 + -15 = 0
0 + -6x = 30 + -15
-6x = 30 + -15

Combine like terms: 30 + -15 = 15
-6x = 15

Divide each side by '-6'.
x = -2.5

Simplifying
x = -2.5

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