6x+9-3x+15=30

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Solution for 6x+9-3x+15=30 equation:


Simplifying
6x + 9 + -3x + 15 = 30

Reorder the terms:
9 + 15 + 6x + -3x = 30

Combine like terms: 9 + 15 = 24
24 + 6x + -3x = 30

Combine like terms: 6x + -3x = 3x
24 + 3x = 30

Solving
24 + 3x = 30

Solving for variable 'x'.

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

Add '-24' to each side of the equation.
24 + -24 + 3x = 30 + -24

Combine like terms: 24 + -24 = 0
0 + 3x = 30 + -24
3x = 30 + -24

Combine like terms: 30 + -24 = 6
3x = 6

Divide each side by '3'.
x = 2

Simplifying
x = 2

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