Question

How do you solve `\frac { 4} { 7c + 6} = \frac { 3} { 8}`?

Answer 1

`c=2/3`

Explanation:

First cross-multiply:
`(7c+6)(3)=(4)(8)`

Multiply each side:
`21c+18=32`

Subtract 18 from each side:
`21c=14`

Divide each side by 21:
`c=14/21`
`c=2/3`