Question 257899
136/2=68 UNITS ARE IN THE SHOP
LET X=THE NUMBER OF BICYCLES.
LET Y=THE NUMBER OF TRICYCLES.
X+Y=68 MULTIPLY BY -2 & ADD
2X+3Y=153 NUMBER OF WHEELS.
-2X-2Y=-136
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Y=17 NUMBER OF TRICYCLES.
68-17=51 NUMBER OF BICYCLES.
PROOF:
2*51+3*17=153
102+51=153
153=153