7x-7(5)=21

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


Simplifying
7x + -7(5) = 21

Multiply -7 * 5
7x + -35 = 21

Reorder the terms:
-35 + 7x = 21

Solving
-35 + 7x = 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 + 7x = 21 + 35

Combine like terms: -35 + 35 = 0
0 + 7x = 21 + 35
7x = 21 + 35

Combine like terms: 21 + 35 = 56
7x = 56

Divide each side by '7'.
x = 8

Simplifying
x = 8

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