8r-7=23-2r

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


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

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

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

Solving for variable 'r'.

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

Add '2r' to each side of the equation.
-7 + 8r + 2r = 23 + -2r + 2r

Combine like terms: 8r + 2r = 10r
-7 + 10r = 23 + -2r + 2r

Combine like terms: -2r + 2r = 0
-7 + 10r = 23 + 0
-7 + 10r = 23

Add '7' to each side of the equation.
-7 + 7 + 10r = 23 + 7

Combine like terms: -7 + 7 = 0
0 + 10r = 23 + 7
10r = 23 + 7

Combine like terms: 23 + 7 = 30
10r = 30

Divide each side by '10'.
r = 3

Simplifying
r = 3

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