3(5r+40)=15(3r-24)

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Solution for 3(5r+40)=15(3r-24) equation:


Simplifying
3(5r + 40) = 15(3r + -24)

Reorder the terms:
3(40 + 5r) = 15(3r + -24)
(40 * 3 + 5r * 3) = 15(3r + -24)
(120 + 15r) = 15(3r + -24)

Reorder the terms:
120 + 15r = 15(-24 + 3r)
120 + 15r = (-24 * 15 + 3r * 15)
120 + 15r = (-360 + 45r)

Solving
120 + 15r = -360 + 45r

Solving for variable 'r'.

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

Add '-45r' to each side of the equation.
120 + 15r + -45r = -360 + 45r + -45r

Combine like terms: 15r + -45r = -30r
120 + -30r = -360 + 45r + -45r

Combine like terms: 45r + -45r = 0
120 + -30r = -360 + 0
120 + -30r = -360

Add '-120' to each side of the equation.
120 + -120 + -30r = -360 + -120

Combine like terms: 120 + -120 = 0
0 + -30r = -360 + -120
-30r = -360 + -120

Combine like terms: -360 + -120 = -480
-30r = -480

Divide each side by '-30'.
r = 16

Simplifying
r = 16

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