12x-40=15(3x+1)

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Solution for 12x-40=15(3x+1) equation:


Simplifying
12x + -40 = 15(3x + 1)

Reorder the terms:
-40 + 12x = 15(3x + 1)

Reorder the terms:
-40 + 12x = 15(1 + 3x)
-40 + 12x = (1 * 15 + 3x * 15)
-40 + 12x = (15 + 45x)

Solving
-40 + 12x = 15 + 45x

Solving for variable 'x'.

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

Add '-45x' to each side of the equation.
-40 + 12x + -45x = 15 + 45x + -45x

Combine like terms: 12x + -45x = -33x
-40 + -33x = 15 + 45x + -45x

Combine like terms: 45x + -45x = 0
-40 + -33x = 15 + 0
-40 + -33x = 15

Add '40' to each side of the equation.
-40 + 40 + -33x = 15 + 40

Combine like terms: -40 + 40 = 0
0 + -33x = 15 + 40
-33x = 15 + 40

Combine like terms: 15 + 40 = 55
-33x = 55

Divide each side by '-33'.
x = -1.666666667

Simplifying
x = -1.666666667

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