x-1=2(x-4)

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


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

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

Reorder the terms:
-1 + x = 2(-4 + x)
-1 + x = (-4 * 2 + x * 2)
-1 + x = (-8 + 2x)

Solving
-1 + x = -8 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-1 + x + -2x = -8 + 2x + -2x

Combine like terms: x + -2x = -1x
-1 + -1x = -8 + 2x + -2x

Combine like terms: 2x + -2x = 0
-1 + -1x = -8 + 0
-1 + -1x = -8

Add '1' to each side of the equation.
-1 + 1 + -1x = -8 + 1

Combine like terms: -1 + 1 = 0
0 + -1x = -8 + 1
-1x = -8 + 1

Combine like terms: -8 + 1 = -7
-1x = -7

Divide each side by '-1'.
x = 7

Simplifying
x = 7

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