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30 May, 23:31

6 stools and 4chairs cost$58 but 5 stools and 2 chairs cost$ 35 find the cost of each stool and each chair

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  1. 30 May, 23:52
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    Stool = s, chair = c

    6s+4c=58 - - - (1)

    5s+2c=35 - - - (2)

    (2) * 2; 10s+4c=70 - - - (3)

    (3) - (1); 4s=12

    so s=3

    from (2)

    5s+2c = 35

    5 (3) + 2c=35

    2c = 35-15

    2c = 20

    so c=10

    then the cost of each stool is $3 and the cost of each chair is $10
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