Question

Solve for x. y=7x−7z−9

Answer 1

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! :)

Answer 2

Answer:

The value of x is $x=\frac{y+7z+9}{7}$

Step-by-step 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.

$x=\frac{y+7z+9}{7}$

Hence the value of x is $x=\frac{y+7z+9}{7}$.