x-1=3(2x+4)

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Solution for x-1=3(2x+4) equation:


Simplifying
x + -1 = 3(2x + 4)

Reorder the terms:
-1 + x = 3(2x + 4)

Reorder the terms:
-1 + x = 3(4 + 2x)
-1 + x = (4 * 3 + 2x * 3)
-1 + x = (12 + 6x)

Solving
-1 + x = 12 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-1 + x + -6x = 12 + 6x + -6x

Combine like terms: x + -6x = -5x
-1 + -5x = 12 + 6x + -6x

Combine like terms: 6x + -6x = 0
-1 + -5x = 12 + 0
-1 + -5x = 12

Add '1' to each side of the equation.
-1 + 1 + -5x = 12 + 1

Combine like terms: -1 + 1 = 0
0 + -5x = 12 + 1
-5x = 12 + 1

Combine like terms: 12 + 1 = 13
-5x = 13

Divide each side by '-5'.
x = -2.6

Simplifying
x = -2.6

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