9(X-1)+3X=15

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Solution for 9(X-1)+3X=15 equation:


Simplifying
9(X + -1) + 3X = 15

Reorder the terms:
9(-1 + X) + 3X = 15
(-1 * 9 + X * 9) + 3X = 15
(-9 + 9X) + 3X = 15

Combine like terms: 9X + 3X = 12X
-9 + 12X = 15

Solving
-9 + 12X = 15

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 + 12X = 15 + 9

Combine like terms: -9 + 9 = 0
0 + 12X = 15 + 9
12X = 15 + 9

Combine like terms: 15 + 9 = 24
12X = 24

Divide each side by '12'.
X = 2

Simplifying
X = 2

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