3(r-20)+4r=2460

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Solution for 3(r-20)+4r=2460 equation:


Simplifying
3(r + -20) + 4r = 2460

Reorder the terms:
3(-20 + r) + 4r = 2460
(-20 * 3 + r * 3) + 4r = 2460
(-60 + 3r) + 4r = 2460

Combine like terms: 3r + 4r = 7r
-60 + 7r = 2460

Solving
-60 + 7r = 2460

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 + 7r = 2460 + 60

Combine like terms: -60 + 60 = 0
0 + 7r = 2460 + 60
7r = 2460 + 60

Combine like terms: 2460 + 60 = 2520
7r = 2520

Divide each side by '7'.
r = 360

Simplifying
r = 360

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