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DedPeter [7]
3 years ago
7

What is the answer to this question ? 3a-4=5

Mathematics
2 answers:
Nataly_w [17]3 years ago
8 0

Answer:

a=3

Step-by-step explanation:

a=3 because 5+4=9 and 9÷3=3

hope this helps!!

MissTica3 years ago
5 0

Answer:

a=3

Step-by-step explanation:

3a-4=5

put the 4 on the same side as the 5 and switch it from - to +

Ex.  3a=5+4

now add the 5 and the 4

Ex.   3a=9

now isolate the variable (thats the letter) by dividing 3a by 3, then divide the 9 by 3 simultaneously

Ex.   3a/3=a  |  9/3=3

Then v

       a=3

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sukhopar [10]

(6, 2 )

substitute x = 5 into the equation and solve for y

6y + 8 = 20 ( subtract 8 from both sides )

6y = 12 ( divide both sides by 6 )

y = \frac{12}{6} = 2

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3 years ago
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Answer:

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2 years ago
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Nat2105 [25]

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