2r+7=-3r-8

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Solution for 2r+7=-3r-8 equation:


Simplifying
2r + 7 = -3r + -8

Reorder the terms:
7 + 2r = -3r + -8

Reorder the terms:
7 + 2r = -8 + -3r

Solving
7 + 2r = -8 + -3r

Solving for variable 'r'.

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

Add '3r' to each side of the equation.
7 + 2r + 3r = -8 + -3r + 3r

Combine like terms: 2r + 3r = 5r
7 + 5r = -8 + -3r + 3r

Combine like terms: -3r + 3r = 0
7 + 5r = -8 + 0
7 + 5r = -8

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

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

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

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

Simplifying
r = -3

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