12-3(5x+3)+8x=18

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Solution for 12-3(5x+3)+8x=18 equation:


Simplifying
12 + -3(5x + 3) + 8x = 18

Reorder the terms:
12 + -3(3 + 5x) + 8x = 18
12 + (3 * -3 + 5x * -3) + 8x = 18
12 + (-9 + -15x) + 8x = 18

Combine like terms: 12 + -9 = 3
3 + -15x + 8x = 18

Combine like terms: -15x + 8x = -7x
3 + -7x = 18

Solving
3 + -7x = 18

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 + -7x = 18 + -3

Combine like terms: 3 + -3 = 0
0 + -7x = 18 + -3
-7x = 18 + -3

Combine like terms: 18 + -3 = 15
-7x = 15

Divide each side by '-7'.
x = -2.142857143

Simplifying
x = -2.142857143

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