## becca18 Group Title quick question..11/a+8/2a=? 2 years ago 2 years ago

1. seanwalsh1984 Group Title

In the current form, no solutions exist. Maybe you wrote down wrong? http://www.wolframalpha.com/input/?i=solve%2811%2Fa+-+8%2F2a+%3D+0%2Ca%29

2. seanwalsh1984 Group Title

Ok, equals 7. That's better.

3. becca18 Group Title

no that's a qustion mark lol

4. seanwalsh1984 Group Title

11/a - 8/2a = 7 Multiply both sides by a. 11 - 8/2 = 7a Divide through by 7. 11/7 - 4/7 = a 7/7 = a 1 = a Hope this helps.

5. becca18 Group Title

ha thanks but that's a question mark lol

6. Mandolino Group Title

I think seanwalsh misread your equation; he is correct if the second term on the LHS is 8/2a, but not if it is 8/(2a), which is what your drawing looks like to me. In case it is the latter:$\frac{11}{a}+\frac{8}{2a}=7$now reduce the 8/2 to a 4$\frac{11}{a}+\frac{4}{a}=7$combine like terms$\frac{15}{a}=7$or$a=\frac{15}{7}$