8r+20=-20+2-10r

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Solution for 8r+20=-20+2-10r equation:


Simplifying
8r + 20 = -20 + 2 + -10r

Reorder the terms:
20 + 8r = -20 + 2 + -10r

Combine like terms: -20 + 2 = -18
20 + 8r = -18 + -10r

Solving
20 + 8r = -18 + -10r

Solving for variable 'r'.

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

Add '10r' to each side of the equation.
20 + 8r + 10r = -18 + -10r + 10r

Combine like terms: 8r + 10r = 18r
20 + 18r = -18 + -10r + 10r

Combine like terms: -10r + 10r = 0
20 + 18r = -18 + 0
20 + 18r = -18

Add '-20' to each side of the equation.
20 + -20 + 18r = -18 + -20

Combine like terms: 20 + -20 = 0
0 + 18r = -18 + -20
18r = -18 + -20

Combine like terms: -18 + -20 = -38
18r = -38

Divide each side by '18'.
r = -2.111111111

Simplifying
r = -2.111111111

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