Question

- 1/2 x + 2 = x + 7
I still dont understand how to do it

Answer 1

how to do what?

Answer 2

whats the question?

Answer 3

- 1/2 x + 2 = x + 7

Answer 4

x==-10/3

Answer 5

How did you get to that answer?

Answer 6

I want to learn it, not just get answers haha

Answer 7

Follow the "golden rule" of algebra. Thou shalt do to one side of the equal sign as thou do to the other side.

Answer 8

In this case subtract x.
You now have -1.5x + 2 = 7 Do you see why?

Answer 9

Yeah

Answer 10

Continuing, now subtract 2. You now have:

-1.5x= 5 Again did you follow?

Answer 11

\[\Huge{\frac{1}{2}x+2=x+7}\]\[\Huge{\frac{x+2}{2}=\frac{x+7}{1}}\]By cross multiplication we have,\[\Huge{(x+2)=2(x+7)}\]Solve this for \(x\).

Answer 12

Yes

Answer 13

I think you are on track. We only now have to do is divide by -1.5
We now have x = -(5/1.5) Using calculator divide 5 by 1.5 and prefix the minus sign.