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Tema [17]
3 years ago
9

-7y = -84 what does y equal

Mathematics
2 answers:
Brut [27]3 years ago
6 0
To "solve" equation with a single variable you perform whatever operations necessary to isolate the variable by itself on one side of the equal (or inequality) sign.  Because it is an equality whatever operation you perform on one side you must also perform on the other side, otherwise you eliminate the equality of the expression or equation...

-7y=-84  divide both sides by -7

y=12
babunello [35]3 years ago
4 0
Okay, so first you need to divide both sides by -7!

That would leave you with y = 12 because:

-7y / -7y = y
-84 / -7 = 12

That equals

y = 12! Have a great day and I hope I helped!
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Svetach [21]

Answer:

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Step-by-step explanation: Trig table gives:

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3 0
4 years ago
There are 45 carpenters in a crew. 18 of the carpenters have children. What is the ratio of the number of carpenters to the numb
aev [14]
<h3>Answer is  5:3</h3>

==========================================================

Explanation:

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2 years ago
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MakcuM [25]

Answer:

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5 0
3 years ago
Read 2 more answers
What is the answer to this question 7z +19/2 = 13
Anarel [89]

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3. z=0.5

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1 year ago
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