54.7k views
3 votes
Solve for x. y=7x−7z−9

User KIDJourney
by
6.5k points

2 Answers

7 votes
You have to isolate the variable so you need to add 7z and 9 to both sides. You then get y+ 7z+ 9= 7x. Then divide 7x from both sides. The equation becomes x= y/7+ z + 9/7.
I hope this helps love! :)
User Mdgrech
by
6.4k points
4 votes

Answer:

The value of x is
x=(y+7z+9)/(7)

Explanation:

Consider the provided equation.


y=7x-7z-9

We need to solve the equation for x.

Add 7z to both the sides.


y+7z=7x-7z+7z-9


y+7z=7x-9

Add 9 to both the sides.


y+7z+9=7x-9+9


y+7z+9=7x

Divide both sides by 7.


x=(y+7z+9)/(7)

Hence the value of x is
x=(y+7z+9)/(7).

User Paradoxetion
by
7.0k points
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