10r-78=0

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Solution for 10r-78=0 equation: 


Simplifying
10r + -78 = 0

Reorder the terms:
-78 + 10r = 0

Solving
-78 + 10r = 0

Solving for variable 'r'.

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

Add '78' to each side of the equation.
-78 + 78 + 10r = 0 + 78

Combine like terms: -78 + 78 = 0
0 + 10r = 0 + 78
10r = 0 + 78

Combine like terms: 0 + 78 = 78
10r = 78

Divide each side by '10'.
r = 7.8

Simplifying
r = 7.8

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