Final Answer
Step-by-step Solution
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Factor the polynomial $3x-12$ by it's greatest common factor (GCF): $3$
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$\frac{x-4}{x+5}=\frac{3\left(x-4\right)}{x+7}$
Learn how to solve integral calculus problems step by step online. Solve the rational equation (x-4)/(x+5)=(3x-12)/(x+7). Factor the polynomial 3x-12 by it's greatest common factor (GCF): 3. Apply fraction cross-multiplication. Cancel x-4 from both sides of the equation. Solve the product 3\left(x+5\right).