2(7-x)+4-x=20

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Solution for 2(7-x)+4-x=20 equation:


Simplifying
2(7 + -1x) + 4 + -1x = 20
(7 * 2 + -1x * 2) + 4 + -1x = 20
(14 + -2x) + 4 + -1x = 20

Reorder the terms:
14 + 4 + -2x + -1x = 20

Combine like terms: 14 + 4 = 18
18 + -2x + -1x = 20

Combine like terms: -2x + -1x = -3x
18 + -3x = 20

Solving
18 + -3x = 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 + -3x = 20 + -18

Combine like terms: 18 + -18 = 0
0 + -3x = 20 + -18
-3x = 20 + -18

Combine like terms: 20 + -18 = 2
-3x = 2

Divide each side by '-3'.
x = -0.6666666667

Simplifying
x = -0.6666666667

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