9x+40=2(x-1)

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Solution for 9x+40=2(x-1) equation:


Simplifying
9x + 40 = 2(x + -1)

Reorder the terms:
40 + 9x = 2(x + -1)

Reorder the terms:
40 + 9x = 2(-1 + x)
40 + 9x = (-1 * 2 + x * 2)
40 + 9x = (-2 + 2x)

Solving
40 + 9x = -2 + 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.
40 + 9x + -2x = -2 + 2x + -2x

Combine like terms: 9x + -2x = 7x
40 + 7x = -2 + 2x + -2x

Combine like terms: 2x + -2x = 0
40 + 7x = -2 + 0
40 + 7x = -2

Add '-40' to each side of the equation.
40 + -40 + 7x = -2 + -40

Combine like terms: 40 + -40 = 0
0 + 7x = -2 + -40
7x = -2 + -40

Combine like terms: -2 + -40 = -42
7x = -42

Divide each side by '7'.
x = -6

Simplifying
x = -6

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