### Home > CCA2 > Chapter Ch7 > Lesson 7.1.4 > Problem7-68

7-68.

Solve each equation. Homework Help ✎

1. $\frac { 3 } { x + 1 } = \frac { 4 } { x }$

2. $\frac { 3 } { x + 1 } + \frac { 4 } { x } = 2$

3. $\frac { 3 } { x + 2 } + 5 = \frac { 3 } { x + 2 }$

4. Explain why part (c) has no solution.

Multiply both sides of the equation by x(x + 1).

x = −4

See part (a).

Look at the equation carefully before you try to solve it.

no solution

Substitute $\:a = \frac{3}{x + 2}$