Home > CC3MN > Chapter cc35 > Lesson cc35.2.3 > Problem5-49

5-49.

Solve for the variable. Homework Help ✎

1. $\frac { 7 y } { 8 } - \frac { 3 y } { 5 } = \frac { 11 } { 2 }$

Multiply the entire equation by a common multiple of the denominators to get rid of the fractions.
$35y−24y=220$

Combine like terms.
$11y=220$

$y=20$

1. $\frac { a + 4 } { 3 } - \frac { a } { 7 } = \frac { a + 7 } { 5 }$

Follow the steps in part (a).