4(5-x)-(20+x)=18

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Solution for 4(5-x)-(20+x)=18 equation:


Simplifying
4(5 + -1x) + -1(20 + x) = 18
(5 * 4 + -1x * 4) + -1(20 + x) = 18
(20 + -4x) + -1(20 + x) = 18
20 + -4x + (20 * -1 + x * -1) = 18
20 + -4x + (-20 + -1x) = 18

Reorder the terms:
20 + -20 + -4x + -1x = 18

Combine like terms: 20 + -20 = 0
0 + -4x + -1x = 18
-4x + -1x = 18

Combine like terms: -4x + -1x = -5x
-5x = 18

Solving
-5x = 18

Solving for variable 'x'.

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

Divide each side by '-5'.
x = -3.6

Simplifying
x = -3.6

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