-15=-1+r

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Solution for -15=-1+r equation:


Simplifying
-15 = -1 + r

Solving
-15 = -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.
-15 + -1r = -1 + r + -1r

Combine like terms: r + -1r = 0
-15 + -1r = -1 + 0
-15 + -1r = -1

Add '15' to each side of the equation.
-15 + 15 + -1r = -1 + 15

Combine like terms: -15 + 15 = 0
0 + -1r = -1 + 15
-1r = -1 + 15

Combine like terms: -1 + 15 = 14
-1r = 14

Divide each side by '-1'.
r = -14

Simplifying
r = -14

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