-28=r-17

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Solution for -28=r-17 equation:


Simplifying
-28 = r + -17

Reorder the terms:
-28 = -17 + r

Solving
-28 = -17 + 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.
-28 + -1r = -17 + r + -1r

Combine like terms: r + -1r = 0
-28 + -1r = -17 + 0
-28 + -1r = -17

Add '28' to each side of the equation.
-28 + 28 + -1r = -17 + 28

Combine like terms: -28 + 28 = 0
0 + -1r = -17 + 28
-1r = -17 + 28

Combine like terms: -17 + 28 = 11
-1r = 11

Divide each side by '-1'.
r = -11

Simplifying
r = -11

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