12-3[x+2]+7x=-18

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Solution for 12-3[x+2]+7x=-18 equation:


Simplifying
12 + -3[x + 2] + 7x = -18

Reorder the terms:
12 + -3[2 + x] + 7x = -18
12 + [2 * -3 + x * -3] + 7x = -18
12 + [-6 + -3x] + 7x = -18

Combine like terms: 12 + -6 = 6
6 + -3x + 7x = -18

Combine like terms: -3x + 7x = 4x
6 + 4x = -18

Solving
6 + 4x = -18

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 4x = -18 + -6

Combine like terms: 6 + -6 = 0
0 + 4x = -18 + -6
4x = -18 + -6

Combine like terms: -18 + -6 = -24
4x = -24

Divide each side by '4'.
x = -6

Simplifying
x = -6

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