3r=5(r+4)

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Solution for 3r=5(r+4) equation: 


Simplifying
3r = 5(r + 4)

Reorder the terms:
3r = 5(4 + r)
3r = (4 * 5 + r * 5)
3r = (20 + 5r)

Solving
3r = 20 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
3r + -5r = 20 + 5r + -5r

Combine like terms: 3r + -5r = -2r
-2r = 20 + 5r + -5r

Combine like terms: 5r + -5r = 0
-2r = 20 + 0
-2r = 20

Divide each side by '-2'.
r = -10

Simplifying
r = -10

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