The cost of pen is 2x+3 The cost of pencil is y-3 find the cost of 5 pens and pencil
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4 is the cost value of pen and 8 is the cost value of pencil
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2x+3 ×5=7776x
y-3×5= -243y
so pen cost is 7776x
and pencils cost is -243y
y-3×5= -243y
so pen cost is 7776x
and pencils cost is -243y
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