Could someone please explain this problem for me? I'm pretty stumped. Express as single fraction in lowest terms. -3+(9t-3z)/(7t)+(7t+4z)/(4t) Thanks so much for all your help!
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Hello, For example, $\displaystyle \frac{9t-3z}{7t}=\frac{9{\color{red}t}}{7{\color{red}t}}-\frac{3z}{7t}=\frac 97 - \frac 37 \frac zt$
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