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Help me find the value of "y" thanks

Help me find the value of "y" thanks-example-1
User Jawira
by
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2 Answers

4 votes

Answer:


y=3x-8

Explanation:

First, you have to isolate y on one side of the equation.

Step 1) Add 5 to both sides (this will cancel out the (-5) on the left)

Step 2) Subtract 3x from both sides (this will cancel out the (3x) on the left)

Step 3) Subtract y from both sides

Step 4) In order to make the desired variable positive, change the sign of everything in the equation

The step shown above will yield the answer of
y=3x-8

User Saeeda
by
8.1k points
7 votes
You would move you positive 3 to the left side so (y) is by itself. So you would have 3x-8=y. Then substitute X=5. So 3(5)-8=y. 15-8=y. 7=y
User Zenon
by
7.4k points

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