Question

How do you solve `\frac { x + 3} { 2} + \frac { 2x } { 7} = 7`?

Answer 1

A good way to solve this problem is by multiplying the terms with the LCD; or the Least Common Denominator.

Explanation:

`(x+3)/2+(2x)/7=7`

Multiply the terms with 14; the Least Common Denominator of the three terms within the equation.

`7(x+3) +2(2x)=98`

Now, just solve for x.

`7x+21+4x=98`

`11x=77`

`x=7`