-r+4=-8-7r

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Solution for -r+4=-8-7r equation:


Simplifying
-1r + 4 = -8 + -7r

Reorder the terms:
4 + -1r = -8 + -7r

Solving
4 + -1r = -8 + -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.
4 + -1r + 7r = -8 + -7r + 7r

Combine like terms: -1r + 7r = 6r
4 + 6r = -8 + -7r + 7r

Combine like terms: -7r + 7r = 0
4 + 6r = -8 + 0
4 + 6r = -8

Add '-4' to each side of the equation.
4 + -4 + 6r = -8 + -4

Combine like terms: 4 + -4 = 0
0 + 6r = -8 + -4
6r = -8 + -4

Combine like terms: -8 + -4 = -12
6r = -12

Divide each side by '6'.
r = -2

Simplifying
r = -2

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