12+3(x-4)-18=6[5-4(9-x)]

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Solution for 12+3(x-4)-18=6[5-4(9-x)] equation:


Simplifying
12 + 3(x + -4) + -18 = 6[5 + -4(9 + -1x)]

Reorder the terms:
12 + 3(-4 + x) + -18 = 6[5 + -4(9 + -1x)]
12 + (-4 * 3 + x * 3) + -18 = 6[5 + -4(9 + -1x)]
12 + (-12 + 3x) + -18 = 6[5 + -4(9 + -1x)]

Reorder the terms:
12 + -12 + -18 + 3x = 6[5 + -4(9 + -1x)]

Combine like terms: 12 + -12 = 0
0 + -18 + 3x = 6[5 + -4(9 + -1x)]
-18 + 3x = 6[5 + -4(9 + -1x)]
-18 + 3x = 6[5 + (9 * -4 + -1x * -4)]
-18 + 3x = 6[5 + (-36 + 4x)]

Combine like terms: 5 + -36 = -31
-18 + 3x = 6[-31 + 4x]
-18 + 3x = [-31 * 6 + 4x * 6]
-18 + 3x = [-186 + 24x]

Solving
-18 + 3x = -186 + 24x

Solving for variable 'x'.

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

Add '-24x' to each side of the equation.
-18 + 3x + -24x = -186 + 24x + -24x

Combine like terms: 3x + -24x = -21x
-18 + -21x = -186 + 24x + -24x

Combine like terms: 24x + -24x = 0
-18 + -21x = -186 + 0
-18 + -21x = -186

Add '18' to each side of the equation.
-18 + 18 + -21x = -186 + 18

Combine like terms: -18 + 18 = 0
0 + -21x = -186 + 18
-21x = -186 + 18

Combine like terms: -186 + 18 = -168
-21x = -168

Divide each side by '-21'.
x = 8

Simplifying
x = 8

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