-2r=10-r

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Solution for -2r=10-r equation:


Simplifying
-2r = 10 + -1r

Solving
-2r = 10 + -1r

Solving for variable 'r'.

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

Add 'r' to each side of the equation.
-2r + r = 10 + -1r + r

Combine like terms: -2r + r = -1r
-1r = 10 + -1r + r

Combine like terms: -1r + r = 0
-1r = 10 + 0
-1r = 10

Divide each side by '-1'.
r = -10

Simplifying
r = -10

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