3(r+5)=2(5r-3)

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Solution for 3(r+5)=2(5r-3) equation:


Simplifying
3(r + 5) = 2(5r + -3)

Reorder the terms:
3(5 + r) = 2(5r + -3)
(5 * 3 + r * 3) = 2(5r + -3)
(15 + 3r) = 2(5r + -3)

Reorder the terms:
15 + 3r = 2(-3 + 5r)
15 + 3r = (-3 * 2 + 5r * 2)
15 + 3r = (-6 + 10r)

Solving
15 + 3r = -6 + 10r

Solving for variable 'r'.

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

Add '-10r' to each side of the equation.
15 + 3r + -10r = -6 + 10r + -10r

Combine like terms: 3r + -10r = -7r
15 + -7r = -6 + 10r + -10r

Combine like terms: 10r + -10r = 0
15 + -7r = -6 + 0
15 + -7r = -6

Add '-15' to each side of the equation.
15 + -15 + -7r = -6 + -15

Combine like terms: 15 + -15 = 0
0 + -7r = -6 + -15
-7r = -6 + -15

Combine like terms: -6 + -15 = -21
-7r = -21

Divide each side by '-7'.
r = 3

Simplifying
r = 3

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