-3r+2+8r-7=

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


Simplifying
-3r + 2 + 8r + -7 = 0

Reorder the terms:
2 + -7 + -3r + 8r = 0

Combine like terms: 2 + -7 = -5
-5 + -3r + 8r = 0

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

Solving
-5 + 5r = 0

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 5r = 0 + 5

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

Combine like terms: 0 + 5 = 5
5r = 5

Divide each side by '5'.
r = 1

Simplifying
r = 1

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