15x+3-12=30

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Solution for 15x+3-12=30 equation:


Simplifying
15x + 3 + -12 = 30

Reorder the terms:
3 + -12 + 15x = 30

Combine like terms: 3 + -12 = -9
-9 + 15x = 30

Solving
-9 + 15x = 30

Solving for variable 'x'.

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

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

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

Combine like terms: 30 + 9 = 39
15x = 39

Divide each side by '15'.
x = 2.6

Simplifying
x = 2.6

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