Question 678315
1V+6B=372 MULTIPLY BY -4 & ADD
4V+12B=780
-4A-24B=-1488
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-12B=-708
B=-708/-12
B=59 PEOPLE PER BUS.
1V+6*59=372
1V+354=372
1V=372-354
1V=18 PEOPLE PER VAN.
PROOF:
4*18+12*59=780
72+708=780
780=780