Solving rational equations solve for x: 3/x-4=7/x

Mathematics

2 answers:

KIM [24]3 years ago

8 0

Solving the rational equation $\frac{3}{x-4}=\frac{7}{x}$ the value of x is 7

Step-by-step explanation:

We need to solve rational equation: $\frac{3}{x-4}=\frac{7}{x}$ and find value of x.

Solving:

$\frac{3}{x-4}=\frac{7}{x}$

Cross multiplying:

$3(x)=7(x-4)\\Simplifying:\\3x=7x-28\\3x-7x=-28\\-4x=-28\\x=-28/-4\\x=7$

So, value of x = 7.

Solving the rational equation $\frac{3}{x-4}=\frac{7}{x}$ the value of x is 7

Keywords: Solving the rational equation

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Olenka [21]3 years ago

4 0

Answer:

-1

Step-by-step explanation:

3/x - 4 = 7/x

3/x - 7/x = 4

-4/x = 4

x = -1

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