3(r-3)-1=2r+9

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Solution for 3(r-3)-1=2r+9 equation:


Simplifying
3(r + -3) + -1 = 2r + 9

Reorder the terms:
3(-3 + r) + -1 = 2r + 9
(-3 * 3 + r * 3) + -1 = 2r + 9
(-9 + 3r) + -1 = 2r + 9

Reorder the terms:
-9 + -1 + 3r = 2r + 9

Combine like terms: -9 + -1 = -10
-10 + 3r = 2r + 9

Reorder the terms:
-10 + 3r = 9 + 2r

Solving
-10 + 3r = 9 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-10 + 3r + -2r = 9 + 2r + -2r

Combine like terms: 3r + -2r = 1r
-10 + 1r = 9 + 2r + -2r

Combine like terms: 2r + -2r = 0
-10 + 1r = 9 + 0
-10 + 1r = 9

Add '10' to each side of the equation.
-10 + 10 + 1r = 9 + 10

Combine like terms: -10 + 10 = 0
0 + 1r = 9 + 10
1r = 9 + 10

Combine like terms: 9 + 10 = 19
1r = 19

Divide each side by '1'.
r = 19

Simplifying
r = 19

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