9-2r=-8+r-10

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Solution for 9-2r=-8+r-10 equation:


Simplifying
9 + -2r = -8 + r + -10

Reorder the terms:
9 + -2r = -8 + -10 + r

Combine like terms: -8 + -10 = -18
9 + -2r = -18 + r

Solving
9 + -2r = -18 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
9 + -2r + -1r = -18 + r + -1r

Combine like terms: -2r + -1r = -3r
9 + -3r = -18 + r + -1r

Combine like terms: r + -1r = 0
9 + -3r = -18 + 0
9 + -3r = -18

Add '-9' to each side of the equation.
9 + -9 + -3r = -18 + -9

Combine like terms: 9 + -9 = 0
0 + -3r = -18 + -9
-3r = -18 + -9

Combine like terms: -18 + -9 = -27
-3r = -27

Divide each side by '-3'.
r = 9

Simplifying
r = 9

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