#19 (no calculator) from test 10

Yessss love a #19 that can be done in one step!

You’re given 2x+3y=1200 and 3x+2y=1300. Should you solve for x and y? NO!!! You don’t need to. You’re not asked for either one. You’re asked for 5x+5y. If you’re asked for a cake, see if you can just buy a cake before you start shopping for ingredients.

In this case, all you gotta do is add:


We’ve barely even started and we’re already done!

Leave a Reply