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

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


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

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

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

Combine like terms: 12 + -42 = -30
-30 + 12x + 3x = 42(x + -1)

Combine like terms: 12x + 3x = 15x
-30 + 15x = 42(x + -1)

Reorder the terms:
-30 + 15x = 42(-1 + x)
-30 + 15x = (-1 * 42 + x * 42)
-30 + 15x = (-42 + 42x)

Solving
-30 + 15x = -42 + 42x

Solving for variable 'x'.

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

Add '-42x' to each side of the equation.
-30 + 15x + -42x = -42 + 42x + -42x

Combine like terms: 15x + -42x = -27x
-30 + -27x = -42 + 42x + -42x

Combine like terms: 42x + -42x = 0
-30 + -27x = -42 + 0
-30 + -27x = -42

Add '30' to each side of the equation.
-30 + 30 + -27x = -42 + 30

Combine like terms: -30 + 30 = 0
0 + -27x = -42 + 30
-27x = -42 + 30

Combine like terms: -42 + 30 = -12
-27x = -12

Divide each side by '-27'.
x = 0.4444444444

Simplifying
x = 0.4444444444

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