Answers edited by Kenneth B
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How do you solve #-\frac { 4a } { a + 8} = \frac { 12} { a - 13}#?
How do you solve #\frac { 1} { 2} x - \frac { 1} { 4} = \frac { 1} { 3} x + \frac { 1} { 5}#?