Question

How do you make x the subject of the formula?
I need help on this one
y= 7x-1​

Answer 1

x = 1/7(y+1)

or

x = 1/7 y + 1/7

Explanation:

y= 7x-1​

Solve for x

Add 1 to each side

y+1 = 7x-1+1

y+1 = 7x

Divide each side by 7

1/7(y+1) = 7x/7

1/7y + 1/7 =x

Answer 2

x=
`(y+1)/(7)`

Explanation:

Hi there!

We want to make x the subject of the formula, which means to solve the formula for x

Here is the given formula:

y=7x-1

Our ultimate goal is to isolate x onto one side

Start by subtracting 7x from both sides

y-7x=-1

Subtract y from both sides to remove it from the left side

-7x=-y-1

Divide both sides by 7

x=
`(-y-1)/(-7)`

Simplify (factor -1 out of the numerator and denominator, then cancel it out)

x=
`(-1(y+1))/((-1)(7))`

x=
`(y+1)/(7)`

Hope this helps!