Ted and bill went to a shop to buy toy cars and trucks.Ted bought 4toy cars and 3toy trucks.He paid a bilk of $61.Bill paid a bill of $58 for his purchase of 2toy cars and 4toy trucks.What is the total cost of 5toy cars and 3toy trucks?
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Let the price of each car be x and each truck y
4x+3y=61...... (1)
2x+4y=58.... (2)×2
4x+8y=116.... (2)
By subtract 1 and 2
4x+8y-4x-3y=116-61
5y=55
Y=11
From equation 2
2x+4×11=58
2x=58-44=14
X=7
Cost of 5 car and 3 truk = 5×7+3×11
=35+33=68
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