5r+12=3(r+5)

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Solution for 5r+12=3(r+5) equation:


Simplifying
5r + 12 = 3(r + 5)

Reorder the terms:
12 + 5r = 3(r + 5)

Reorder the terms:
12 + 5r = 3(5 + r)
12 + 5r = (5 * 3 + r * 3)
12 + 5r = (15 + 3r)

Solving
12 + 5r = 15 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
12 + 5r + -3r = 15 + 3r + -3r

Combine like terms: 5r + -3r = 2r
12 + 2r = 15 + 3r + -3r

Combine like terms: 3r + -3r = 0
12 + 2r = 15 + 0
12 + 2r = 15

Add '-12' to each side of the equation.
12 + -12 + 2r = 15 + -12

Combine like terms: 12 + -12 = 0
0 + 2r = 15 + -12
2r = 15 + -12

Combine like terms: 15 + -12 = 3
2r = 3

Divide each side by '2'.
r = 1.5

Simplifying
r = 1.5

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