5(7-x)=21

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Solution for 5(7-x)=21 equation:


Simplifying
5(7 + -1x) = 21
(7 * 5 + -1x * 5) = 21
(35 + -5x) = 21

Solving
35 + -5x = 21

Solving for variable 'x'.

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

Add '-35' to each side of the equation.
35 + -35 + -5x = 21 + -35

Combine like terms: 35 + -35 = 0
0 + -5x = 21 + -35
-5x = 21 + -35

Combine like terms: 21 + -35 = -14
-5x = -14

Divide each side by '-5'.
x = 2.8

Simplifying
x = 2.8

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