7-(2x+11)+3(3-x)=20

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Solution for 7-(2x+11)+3(3-x)=20 equation:


Simplifying
7 + -1(2x + 11) + 3(3 + -1x) = 20

Reorder the terms:
7 + -1(11 + 2x) + 3(3 + -1x) = 20
7 + (11 * -1 + 2x * -1) + 3(3 + -1x) = 20
7 + (-11 + -2x) + 3(3 + -1x) = 20
7 + -11 + -2x + (3 * 3 + -1x * 3) = 20
7 + -11 + -2x + (9 + -3x) = 20

Reorder the terms:
7 + -11 + 9 + -2x + -3x = 20

Combine like terms: 7 + -11 = -4
-4 + 9 + -2x + -3x = 20

Combine like terms: -4 + 9 = 5
5 + -2x + -3x = 20

Combine like terms: -2x + -3x = -5x
5 + -5x = 20

Solving
5 + -5x = 20

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + -5x = 20 + -5

Combine like terms: 5 + -5 = 0
0 + -5x = 20 + -5
-5x = 20 + -5

Combine like terms: 20 + -5 = 15
-5x = 15

Divide each side by '-5'.
x = -3

Simplifying
x = -3

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