2r-7-8r=-23

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Solution for 2r-7-8r=-23 equation:


Simplifying
2r + -7 + -8r = -23

Reorder the terms:
-7 + 2r + -8r = -23

Combine like terms: 2r + -8r = -6r
-7 + -6r = -23

Solving
-7 + -6r = -23

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 + -6r = -23 + 7

Combine like terms: -7 + 7 = 0
0 + -6r = -23 + 7
-6r = -23 + 7

Combine like terms: -23 + 7 = -16
-6r = -16

Divide each side by '-6'.
r = 2.666666667

Simplifying
r = 2.666666667

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