2(r+5)=100

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Solution for 2(r+5)=100 equation: 


Simplifying
2(r + 5) = 100

Reorder the terms:
2(5 + r) = 100
(5 * 2 + r * 2) = 100
(10 + 2r) = 100

Solving
10 + 2r = 100

Solving for variable 'r'.

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

Add '-10' to each side of the equation.
10 + -10 + 2r = 100 + -10

Combine like terms: 10 + -10 = 0
0 + 2r = 100 + -10
2r = 100 + -10

Combine like terms: 100 + -10 = 90
2r = 90

Divide each side by '2'.
r = 45

Simplifying
r = 45

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