168=r*(-56)

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Solution for 168=r*(-56) equation:


Simplifying
168 = r(-56)

Reorder the terms for easier multiplication:
168 = -56r

Solving
168 = -56r

Solving for variable 'r'.

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

Add '56r' to each side of the equation.
168 + 56r = -56r + 56r

Combine like terms: -56r + 56r = 0
168 + 56r = 0

Add '-168' to each side of the equation.
168 + -168 + 56r = 0 + -168

Combine like terms: 168 + -168 = 0
0 + 56r = 0 + -168
56r = 0 + -168

Combine like terms: 0 + -168 = -168
56r = -168

Divide each side by '56'.
r = -3

Simplifying
r = -3

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