How do you solve r+11+8r=29?

Nov 21, 2016

$r = 2$

Explanation:

First, rearrange and combine like terms:

$r + 8 r + 11 = 29$

$\left(1 + 8\right) r + 11 = 29$

$9 r + 11 = 29$

Now we can isolate and solve for $r$ while always keeping the equation balanced:

First, subtract $11$ from each side of the equation:

$9 r + 11 - 11 = 29 - 11$

$9 r + 0 = 18$

$9 r = 18$

Now we can divide each side of the equation by $9$ to get $r$:

$\frac{9 r}{9} = \frac{18}{9}$

$1 r = 2$

$r = 2$