# How do you solve -29.5= 5r - 4r?

Nov 28, 2016

#### Answer:

$r = - 29.5$

#### Explanation:

Perform the necessary mathematics to solve for $r$:

$- 29.5 = \left(5 - 4\right) r$

$- 29.5 = 1 \cdot r$

$- 29.5 = r$

Nov 28, 2016

#### Answer:

$r = - 29.5$

#### Explanation:

Don't let the negative decimal scare you on this one!

Since $5 r$ is the same as

$r + r + r + r + r$

and $4 r$ is the same as

$r + r + r + r$

this question is as simple as addition and subtraction. If the variable is the same, you can just add or subtract. (Unless there's a different exponent, but don't worry about that at all yet.)

$r + r + r + r + r - r - r - r - r = r$

Therefore,

$r = - 29.5$

Hope this helps! :)