Mathematics, 02.01.2020 22:31, angellynn581

Naila worked 3.5 hours more than lisa. together, they worked a total of 18 hours. lisa worked h hours.

h+7=18

h+3.5=18

h+(h+3.5)=18

h+(h−3.5)=18

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Naila worked 3.5 hours more than lisa. together, they worked a total of 18 hours. lisa worked h hour...