2(x+9)-1x=20

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Solution for 2(x+9)-1x=20 equation:


Simplifying
2(x + 9) + -1x = 20

Reorder the terms:
2(9 + x) + -1x = 20
(9 * 2 + x * 2) + -1x = 20
(18 + 2x) + -1x = 20

Combine like terms: 2x + -1x = 1x
18 + 1x = 20

Solving
18 + 1x = 20

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 1x = 20 + -18

Combine like terms: 18 + -18 = 0
0 + 1x = 20 + -18
1x = 20 + -18

Combine like terms: 20 + -18 = 2
1x = 2

Divide each side by '1'.
x = 2

Simplifying
x = 2

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