(3x-15)+(-x+12)=0

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Solution for (3x-15)+(-x+12)=0 equation:


Simplifying
(3x + -15) + (-1x + 12) = 0

Reorder the terms:
(-15 + 3x) + (-1x + 12) = 0

Remove parenthesis around (-15 + 3x)
-15 + 3x + (-1x + 12) = 0

Reorder the terms:
-15 + 3x + (12 + -1x) = 0

Remove parenthesis around (12 + -1x)
-15 + 3x + 12 + -1x = 0

Reorder the terms:
-15 + 12 + 3x + -1x = 0

Combine like terms: -15 + 12 = -3
-3 + 3x + -1x = 0

Combine like terms: 3x + -1x = 2x
-3 + 2x = 0

Solving
-3 + 2x = 0

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 2x = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 2x = 0 + 3
2x = 0 + 3

Combine like terms: 0 + 3 = 3
2x = 3

Divide each side by '2'.
x = 1.5

Simplifying
x = 1.5

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