8x-(3x-12)=42

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Solution for 8x-(3x-12)=42 equation:


Simplifying
8x + -1(3x + -12) = 42

Reorder the terms:
8x + -1(-12 + 3x) = 42
8x + (-12 * -1 + 3x * -1) = 42
8x + (12 + -3x) = 42

Reorder the terms:
12 + 8x + -3x = 42

Combine like terms: 8x + -3x = 5x
12 + 5x = 42

Solving
12 + 5x = 42

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 5x = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = 42 + -12
5x = 42 + -12

Combine like terms: 42 + -12 = 30
5x = 30

Divide each side by '5'.
x = 6

Simplifying
x = 6

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