-3r+8+5r+-1=

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Solution for -3r+8+5r+-1= equation:


Simplifying
-3r + 8 + 5r + -1 = 0

Reorder the terms:
8 + -1 + -3r + 5r = 0

Combine like terms: 8 + -1 = 7
7 + -3r + 5r = 0

Combine like terms: -3r + 5r = 2r
7 + 2r = 0

Solving
7 + 2r = 0

Solving for variable 'r'.

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

Add '-7' to each side of the equation.
7 + -7 + 2r = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 2r = 0 + -7
2r = 0 + -7

Combine like terms: 0 + -7 = -7
2r = -7

Divide each side by '2'.
r = -3.5

Simplifying
r = -3.5

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