x-1(x-2)=7(x+2)

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Solution for x-1(x-2)=7(x+2) equation:


Simplifying
x + -1(x + -2) = 7(x + 2)

Reorder the terms:
x + -1(-2 + x) = 7(x + 2)
x + (-2 * -1 + x * -1) = 7(x + 2)
x + (2 + -1x) = 7(x + 2)

Reorder the terms:
2 + x + -1x = 7(x + 2)

Combine like terms: x + -1x = 0
2 + 0 = 7(x + 2)
2 = 7(x + 2)

Reorder the terms:
2 = 7(2 + x)
2 = (2 * 7 + x * 7)
2 = (14 + 7x)

Solving
2 = 14 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
2 + -7x = 14 + 7x + -7x

Combine like terms: 7x + -7x = 0
2 + -7x = 14 + 0
2 + -7x = 14

Add '-2' to each side of the equation.
2 + -2 + -7x = 14 + -2

Combine like terms: 2 + -2 = 0
0 + -7x = 14 + -2
-7x = 14 + -2

Combine like terms: 14 + -2 = 12
-7x = 12

Divide each side by '-7'.
x = -1.714285714

Simplifying
x = -1.714285714

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