-10r+9=-9r

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


Simplifying
-10r + 9 = -9r

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

Solving
9 + -10r = -9r

Solving for variable 'r'.

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

Add '9r' to each side of the equation.
9 + -10r + 9r = -9r + 9r

Combine like terms: -10r + 9r = -1r
9 + -1r = -9r + 9r

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

Add '-9' to each side of the equation.
9 + -9 + -1r = 0 + -9

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

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

Divide each side by '-1'.
r = 9

Simplifying
r = 9

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