Question 93451
2*1*X+1*2*X=600
2X+2X=600
4X=600
X=600/4
X=150 ANSWER FOR THE NUMBER IF $2.00 BULBS.
X=2*150=300 ANSWER FOR THE NUMBER OF $1.00 BULBS.
PROOF
2*150+1*300=600
300+300=600
600=600