r+(-3)=10

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Solution for r+(-3)=10 equation: 


Simplifying
r + (-3) = 10
r + -3 = 10

Reorder the terms:
-3 + r = 10

Solving
-3 + r = 10

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + r = 10 + 3

Combine like terms: -3 + 3 = 0
0 + r = 10 + 3
r = 10 + 3

Combine like terms: 10 + 3 = 13
r = 13

Simplifying
r = 13

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