12(3x-1)=9(3x+1)+42

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Solution for 12(3x-1)=9(3x+1)+42 equation:


Simplifying
12(3x + -1) = 9(3x + 1) + 42

Reorder the terms:
12(-1 + 3x) = 9(3x + 1) + 42
(-1 * 12 + 3x * 12) = 9(3x + 1) + 42
(-12 + 36x) = 9(3x + 1) + 42

Reorder the terms:
-12 + 36x = 9(1 + 3x) + 42
-12 + 36x = (1 * 9 + 3x * 9) + 42
-12 + 36x = (9 + 27x) + 42

Reorder the terms:
-12 + 36x = 9 + 42 + 27x

Combine like terms: 9 + 42 = 51
-12 + 36x = 51 + 27x

Solving
-12 + 36x = 51 + 27x

Solving for variable 'x'.

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

Add '-27x' to each side of the equation.
-12 + 36x + -27x = 51 + 27x + -27x

Combine like terms: 36x + -27x = 9x
-12 + 9x = 51 + 27x + -27x

Combine like terms: 27x + -27x = 0
-12 + 9x = 51 + 0
-12 + 9x = 51

Add '12' to each side of the equation.
-12 + 12 + 9x = 51 + 12

Combine like terms: -12 + 12 = 0
0 + 9x = 51 + 12
9x = 51 + 12

Combine like terms: 51 + 12 = 63
9x = 63

Divide each side by '9'.
x = 7

Simplifying
x = 7

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