Question

I need sombody to check my answer because I don’t have PAPER

Answer 1

You are right 300+r=217

Answer 2

300 + r = 217

Explanation:

300 -> 300

added to r -> +

is the same as -> =

217 -> 217

Put this in one equation and you get:

300 + r = 217

If you need to solve for r (need to isolate r to solve for r):

300 + r = 217

r = 217 / (-300)

r = -0.723333333