7=-8r+7r

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Solution for 7=-8r+7r equation:


Simplifying
7 = -8r + 7r

Combine like terms: -8r + 7r = -1r
7 = -1r

Solving
7 = -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
7 + r = -1r + r

Combine like terms: -1r + r = 0
7 + r = 0

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

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

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

Simplifying
r = -7

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