5(7-21)=x

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


Simplifying
5(7 + -21) = x

Combine like terms: 7 + -21 = -14
5(-14) = x

Multiply 5 * -14
-70 = x

Solving
-70 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-70 + -1x = x + -1x

Combine like terms: x + -1x = 0
-70 + -1x = 0

Add '70' to each side of the equation.
-70 + 70 + -1x = 0 + 70

Combine like terms: -70 + 70 = 0
0 + -1x = 0 + 70
-1x = 0 + 70

Combine like terms: 0 + 70 = 70
-1x = 70

Divide each side by '-1'.
x = -70

Simplifying
x = -70

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