A) solve 4(y-7) = 13 b) make t the subject of the formula P =4t - 3

asked Apr 8, 2015 25.2k views

5 votes

A) solve 4(y-7) = 13

b) make t the subject of the formula P =4t - 3

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$a)\\ \\4(y-7) = 13\\ \\4y-28=13\\ \\4y=13+28\\ \\4y=41/:4\\ \\y=(41)/(4)=10(1)/(4)$

$b)\\\\P =4t - 3\\ \\4t=P+3/:4\\ \\t=(P+3)/(4)$

Firas answered Apr 12, 2015

by Firas

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