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

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


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

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

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

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

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
-10 + -2r + -8r = 20 + 8r + -8r

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

Combine like terms: 8r + -8r = 0
-10 + -10r = 20 + 0
-10 + -10r = 20

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

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

Combine like terms: 20 + 10 = 30
-10r = 30

Divide each side by '-10'.
r = -3

Simplifying
r = -3

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