3(x-1)=9x+7-4(-3x-1)

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Solution for 3(x-1)=9x+7-4(-3x-1) equation:


Simplifying
3(x + -1) = 9x + 7 + -4(-3x + -1)

Reorder the terms:
3(-1 + x) = 9x + 7 + -4(-3x + -1)
(-1 * 3 + x * 3) = 9x + 7 + -4(-3x + -1)
(-3 + 3x) = 9x + 7 + -4(-3x + -1)

Reorder the terms:
-3 + 3x = 9x + 7 + -4(-1 + -3x)
-3 + 3x = 9x + 7 + (-1 * -4 + -3x * -4)
-3 + 3x = 9x + 7 + (4 + 12x)

Reorder the terms:
-3 + 3x = 7 + 4 + 9x + 12x

Combine like terms: 7 + 4 = 11
-3 + 3x = 11 + 9x + 12x

Combine like terms: 9x + 12x = 21x
-3 + 3x = 11 + 21x

Solving
-3 + 3x = 11 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-3 + 3x + -21x = 11 + 21x + -21x

Combine like terms: 3x + -21x = -18x
-3 + -18x = 11 + 21x + -21x

Combine like terms: 21x + -21x = 0
-3 + -18x = 11 + 0
-3 + -18x = 11

Add '3' to each side of the equation.
-3 + 3 + -18x = 11 + 3

Combine like terms: -3 + 3 = 0
0 + -18x = 11 + 3
-18x = 11 + 3

Combine like terms: 11 + 3 = 14
-18x = 14

Divide each side by '-18'.
x = -0.7777777778

Simplifying
x = -0.7777777778

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