20(20-x)=30

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Solution for 20(20-x)=30 equation:


Simplifying
20(20 + -1x) = 30
(20 * 20 + -1x * 20) = 30
(400 + -20x) = 30

Solving
400 + -20x = 30

Solving for variable 'x'.

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

Add '-400' to each side of the equation.
400 + -400 + -20x = 30 + -400

Combine like terms: 400 + -400 = 0
0 + -20x = 30 + -400
-20x = 30 + -400

Combine like terms: 30 + -400 = -370
-20x = -370

Divide each side by '-20'.
x = 18.5

Simplifying
x = 18.5

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