Multiply the first equation by 4 and the second by 2 to get the value of b.... 8a+12b=56 - 8a+10b=48 2b=8 b=$4 If the price of an orange is $4 we can now find the price of an apple by .................2a+(3*$4)=$14 ............2a+12=14........2a=2 a=1 So the cost of an apple is $1 and that of an orange is $4 ......Hope it helps you