Question 163124
270,000+38X<90X
38X-90X<-270,000
-52X<-270,000
X>-270,000/-52 DIVIDING BY A NEGATIVE VALUE CHANGES THE < SIGN TO A > SIGN.
X>5,192.3 IS THE NUMER OF THAT MUST BE SOLD.
PROOF:
LET X=5,193
270,000+38*5,193<90*5,193
270,000+197,334<467,370
467,334<467,370