7-4(x+5)=20-x

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Solution for 7-4(x+5)=20-x equation:


Simplifying
7 + -4(x + 5) = 20 + -1x

Reorder the terms:
7 + -4(5 + x) = 20 + -1x
7 + (5 * -4 + x * -4) = 20 + -1x
7 + (-20 + -4x) = 20 + -1x

Combine like terms: 7 + -20 = -13
-13 + -4x = 20 + -1x

Solving
-13 + -4x = 20 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-13 + -4x + x = 20 + -1x + x

Combine like terms: -4x + x = -3x
-13 + -3x = 20 + -1x + x

Combine like terms: -1x + x = 0
-13 + -3x = 20 + 0
-13 + -3x = 20

Add '13' to each side of the equation.
-13 + 13 + -3x = 20 + 13

Combine like terms: -13 + 13 = 0
0 + -3x = 20 + 13
-3x = 20 + 13

Combine like terms: 20 + 13 = 33
-3x = 33

Divide each side by '-3'.
x = -11

Simplifying
x = -11

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