Intermediate Algebra

[JREasterling]

I am trying to solve this problem; 1/2(y+2)+2=1/4(8y-60)-3

I keep coming up with y=69/6, what am I doing wrong?

 

[tkhunny]

1/2(y+2)+2=1/4(8y-60)-3

Please use parentheses to claify meaning. Is it this...

(1/2)*(y+2)+2 = (1/4)*(8y-60)-3

I'm tempted to clear the parentheses on the right, first.

(1/2)*(y+2)+2 = 2y-15-3

Simplify

(1/2)*(y+2)+2 = 2y-18

May as well get the 2 while we're at it.

(1/2)*(y+2) = 2y-20

Multply the world by 2

y+2 = 4y-40

Add 40

y+42 = 4y

Subtract y

42 = 3y

One more thing. Well, how did you manage 69/6 = 23/2?

 

[JREasterling]

Let's do this again

I have to enter the answer on the computer, when I tried the third time, the correct answer appears. The answer was 14. How did they get this?