12x-15+x+12x-21=945

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Solution for 12x-15+x+12x-21=945 equation:


Simplifying
12x + -15 + x + 12x + -21 = 945

Reorder the terms:
-15 + -21 + 12x + x + 12x = 945

Combine like terms: -15 + -21 = -36
-36 + 12x + x + 12x = 945

Combine like terms: 12x + x = 13x
-36 + 13x + 12x = 945

Combine like terms: 13x + 12x = 25x
-36 + 25x = 945

Solving
-36 + 25x = 945

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + 25x = 945 + 36

Combine like terms: -36 + 36 = 0
0 + 25x = 945 + 36
25x = 945 + 36

Combine like terms: 945 + 36 = 981
25x = 981

Divide each side by '25'.
x = 39.24

Simplifying
x = 39.24

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