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Sagot :
Answer:
9 hours
Step-by-step explanation:
ok so you first translate it into proper form
the proper form is 16 + 6h = 70 h is for hours
so minus 16 from both sides
16 + 6h = 70
-16 -16
now its 6x = 54
so now divide both sides by 6
6x/6 = 54/6
so its now x = 9
so she checked it out for 9 hours.
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