3(r+30)=510

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Solution for 3(r+30)=510 equation:


Simplifying
3(r + 30) = 510

Reorder the terms:
3(30 + r) = 510
(30 * 3 + r * 3) = 510
(90 + 3r) = 510

Solving
90 + 3r = 510

Solving for variable 'r'.

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

Add '-90' to each side of the equation.
90 + -90 + 3r = 510 + -90

Combine like terms: 90 + -90 = 0
0 + 3r = 510 + -90
3r = 510 + -90

Combine like terms: 510 + -90 = 420
3r = 420

Divide each side by '3'.
r = 140

Simplifying
r = 140

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