What is the value of x in the solution y=x-1 y=2x+1

First, we replace y with the first equation, so it would look like this:

Then we start simplifying:

At last we do:

or

So the answer is: -x = 2 or x = -2

Hope this helped! c:

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !