-10=r-1

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Solution for -10=r-1 equation:


Simplifying
-10 = r + -1

Reorder the terms:
-10 = -1 + r

Solving
-10 = -1 + 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.
-10 + -1r = -1 + r + -1r

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

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

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

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

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

Simplifying
r = -9

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