3(3x+4)-7=13(x-1)

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Solution for 3(3x+4)-7=13(x-1) equation:


Simplifying
3(3x + 4) + -7 = 13(x + -1)

Reorder the terms:
3(4 + 3x) + -7 = 13(x + -1)
(4 * 3 + 3x * 3) + -7 = 13(x + -1)
(12 + 9x) + -7 = 13(x + -1)

Reorder the terms:
12 + -7 + 9x = 13(x + -1)

Combine like terms: 12 + -7 = 5
5 + 9x = 13(x + -1)

Reorder the terms:
5 + 9x = 13(-1 + x)
5 + 9x = (-1 * 13 + x * 13)
5 + 9x = (-13 + 13x)

Solving
5 + 9x = -13 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
5 + 9x + -13x = -13 + 13x + -13x

Combine like terms: 9x + -13x = -4x
5 + -4x = -13 + 13x + -13x

Combine like terms: 13x + -13x = 0
5 + -4x = -13 + 0
5 + -4x = -13

Add '-5' to each side of the equation.
5 + -5 + -4x = -13 + -5

Combine like terms: 5 + -5 = 0
0 + -4x = -13 + -5
-4x = -13 + -5

Combine like terms: -13 + -5 = -18
-4x = -18

Divide each side by '-4'.
x = 4.5

Simplifying
x = 4.5

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