84=-7r

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Solution for 84=-7r equation:


Simplifying
84 = -7r

Solving
84 = -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
84 + 7r = -7r + 7r

Combine like terms: -7r + 7r = 0
84 + 7r = 0

Add '-84' to each side of the equation.
84 + -84 + 7r = 0 + -84

Combine like terms: 84 + -84 = 0
0 + 7r = 0 + -84
7r = 0 + -84

Combine like terms: 0 + -84 = -84
7r = -84

Divide each side by '7'.
r = -12

Simplifying
r = -12

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