Question

An equation is shown below...

4c+2c=4c+11/2

What value of 2c makes the equation true.

Answer 1

c = 11/4

Explanation:

One way of doing this is to let 2c = x. Then our equation becomes

2x + x = 2x + 11/2, or x = 11/2.

But 11/2 = 2c. Thus, c = 11/4