3r+3(r+20)=225

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Solution for 3r+3(r+20)=225 equation:


Simplifying
3r + 3(r + 20) = 225

Reorder the terms:
3r + 3(20 + r) = 225
3r + (20 * 3 + r * 3) = 225
3r + (60 + 3r) = 225

Reorder the terms:
60 + 3r + 3r = 225

Combine like terms: 3r + 3r = 6r
60 + 6r = 225

Solving
60 + 6r = 225

Solving for variable 'r'.

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

Add '-60' to each side of the equation.
60 + -60 + 6r = 225 + -60

Combine like terms: 60 + -60 = 0
0 + 6r = 225 + -60
6r = 225 + -60

Combine like terms: 225 + -60 = 165
6r = 165

Divide each side by '6'.
r = 27.5

Simplifying
r = 27.5

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