9+3x-(8x-12)=

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Solution for 9+3x-(8x-12)= equation:


Simplifying
9 + 3x + -1(8x + -12) = 0

Reorder the terms:
9 + 3x + -1(-12 + 8x) = 0
9 + 3x + (-12 * -1 + 8x * -1) = 0
9 + 3x + (12 + -8x) = 0

Reorder the terms:
9 + 12 + 3x + -8x = 0

Combine like terms: 9 + 12 = 21
21 + 3x + -8x = 0

Combine like terms: 3x + -8x = -5x
21 + -5x = 0

Solving
21 + -5x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -5x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -5x = 0 + -21
-5x = 0 + -21

Combine like terms: 0 + -21 = -21
-5x = -21

Divide each side by '-5'.
x = 4.2

Simplifying
x = 4.2

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