r+8=-4r-7

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


Simplifying
r + 8 = -4r + -7

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

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

Solving
8 + r = -7 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
8 + r + 4r = -7 + -4r + 4r

Combine like terms: r + 4r = 5r
8 + 5r = -7 + -4r + 4r

Combine like terms: -4r + 4r = 0
8 + 5r = -7 + 0
8 + 5r = -7

Add '-8' to each side of the equation.
8 + -8 + 5r = -7 + -8

Combine like terms: 8 + -8 = 0
0 + 5r = -7 + -8
5r = -7 + -8

Combine like terms: -7 + -8 = -15
5r = -15

Divide each side by '5'.
r = -3

Simplifying
r = -3

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