r+178=720

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Solution for r+178=720 equation: 


Simplifying
r + 178 = 720

Reorder the terms:
178 + r = 720

Solving
178 + r = 720

Solving for variable 'r'.

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

Add '-178' to each side of the equation.
178 + -178 + r = 720 + -178

Combine like terms: 178 + -178 = 0
0 + r = 720 + -178
r = 720 + -178

Combine like terms: 720 + -178 = 542
r = 542

Simplifying
r = 542

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