7(8-x)=56-21

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Solution for 7(8-x)=56-21 equation:


Simplifying
7(8 + -1x) = 56 + -21
(8 * 7 + -1x * 7) = 56 + -21
(56 + -7x) = 56 + -21

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

Solving
56 + -7x = 35

Solving for variable 'x'.

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

Add '-56' to each side of the equation.
56 + -56 + -7x = 35 + -56

Combine like terms: 56 + -56 = 0
0 + -7x = 35 + -56
-7x = 35 + -56

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

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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