5r-3(2r+5)=9

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Solution for 5r-3(2r+5)=9 equation:


Simplifying
5r + -3(2r + 5) = 9

Reorder the terms:
5r + -3(5 + 2r) = 9
5r + (5 * -3 + 2r * -3) = 9
5r + (-15 + -6r) = 9

Reorder the terms:
-15 + 5r + -6r = 9

Combine like terms: 5r + -6r = -1r
-15 + -1r = 9

Solving
-15 + -1r = 9

Solving for variable 'r'.

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

Add '15' to each side of the equation.
-15 + 15 + -1r = 9 + 15

Combine like terms: -15 + 15 = 0
0 + -1r = 9 + 15
-1r = 9 + 15

Combine like terms: 9 + 15 = 24
-1r = 24

Divide each side by '-1'.
r = -24

Simplifying
r = -24

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