10r-7=87

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Solution for 10r-7=87 equation: 


Simplifying
10r + -7 = 87

Reorder the terms:
-7 + 10r = 87

Solving
-7 + 10r = 87

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + 10r = 87 + 7

Combine like terms: -7 + 7 = 0
0 + 10r = 87 + 7
10r = 87 + 7

Combine like terms: 87 + 7 = 94
10r = 94

Divide each side by '10'.
r = 9.4

Simplifying
r = 9.4

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