-18=r-3

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Solution for -18=r-3 equation:


Simplifying
-18 = r + -3

Reorder the terms:
-18 = -3 + r

Solving
-18 = -3 + 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.
-18 + -1r = -3 + r + -1r

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

Add '18' to each side of the equation.
-18 + 18 + -1r = -3 + 18

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

Combine like terms: -3 + 18 = 15
-1r = 15

Divide each side by '-1'.
r = -15

Simplifying
r = -15

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