Question

Jim gets a $20 allowance per week plus $25 for every lawn he mows. If he made $345 in one week, how many lawns did he mow?

Answer 1

This is a 2-step equation...

$25 per week per lawn. (the number of lawns could vary so that will be our variable "x".)

and he gets $20 allowance... this does not change so we will call it a constant

This week the number of lawns "times" 25 and his allowance = $345

Therefore...

25x + 20 = 345

- 20 -20

25x = 325

Now divide both sides by the coefficient (25)... and that will be the number of lawns he mowed.

Answer 2

Alright. Let's break this down.

25 x 13 = 325

325 + 20 = 345

So that means Jim mowed 13 lawns. ;) Hoped this helped?