12x+15(10-x)=138

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Solution for 12x+15(10-x)=138 equation:


Simplifying
12x + 15(10 + -1x) = 138
12x + (10 * 15 + -1x * 15) = 138
12x + (150 + -15x) = 138

Reorder the terms:
150 + 12x + -15x = 138

Combine like terms: 12x + -15x = -3x
150 + -3x = 138

Solving
150 + -3x = 138

Solving for variable 'x'.

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

Add '-150' to each side of the equation.
150 + -150 + -3x = 138 + -150

Combine like terms: 150 + -150 = 0
0 + -3x = 138 + -150
-3x = 138 + -150

Combine like terms: 138 + -150 = -12
-3x = -12

Divide each side by '-3'.
x = 4

Simplifying
x = 4

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