Question

brenda taylor and justin together earn $300 per day. if brenda and justin together earn $188 and taylor and justin together earn $152 per day. what's the earning of justin per day?

Answer 1

Brenda + Taylor + Justin =300 / day (1)
Brenda + Justin = 188 / day (2)
Taylor + Justin =152 / day (3)

adding eq 2 and 3

Brenda + Taylor + 2Justin = 188 +152
=340 

subtract the eq 1 from the above eq we get

Justin =40

Answer 2

Brenda+Taylor+Justin= $300/Day 
Taylor+Justin= $152/Day 
Brenda+Justin=$188/Day 

Now we will add (Taylor+Justin) and (Brenda+Justin) 

188+152=$340/Day 

Now we will Subtract Brenda+Taylor+ Justin with this answer 

300-340= 40 

$40 is what Justin earns per day.