15+r+7=55

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Solution for 15+r+7=55 equation: 


Simplifying
15 + r + 7 = 55

Reorder the terms:
15 + 7 + r = 55

Combine like terms: 15 + 7 = 22
22 + r = 55

Solving
22 + r = 55

Solving for variable 'r'.

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

Add '-22' to each side of the equation.
22 + -22 + r = 55 + -22

Combine like terms: 22 + -22 = 0
0 + r = 55 + -22
r = 55 + -22

Combine like terms: 55 + -22 = 33
r = 33

Simplifying
r = 33

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