7r+87=990

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Solution for 7r+87=990 equation: 


Simplifying
7r + 87 = 990

Reorder the terms:
87 + 7r = 990

Solving
87 + 7r = 990

Solving for variable 'r'.

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

Add '-87' to each side of the equation.
87 + -87 + 7r = 990 + -87

Combine like terms: 87 + -87 = 0
0 + 7r = 990 + -87
7r = 990 + -87

Combine like terms: 990 + -87 = 903
7r = 903

Divide each side by '7'.
r = 129

Simplifying
r = 129

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