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cassandraaa
24.03.2020 •
Mathematics
Someone please answer quick!!
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Ответ:
To solve the given set of equations A. we multiply the first equation by -7 and then add the two equations.
Step-by-step explanation:
Step 1:
If we multiply equation 1 with -7 and add the resulting equation with equation 2, we can eliminate the x variable and determine the value of y.
Step 2:
Adding equation 2 and 3 we get
Now, we substitute the value of y in any of the previous equations to determine the value of x.
If we substitute
in equation 1, we get
So for the given set of equations,
and ![y=2.](/tpl/images/0561/7312/f9a04.png)
So to solve the given set of equations, we multiply the first equation by -7 and then add the two equations.
Ответ:
Answer and explanation:
Given :![f(x)=y=\frac{3x}{8+x}](/tpl/images/1301/9757/e7956.png)
To find : Arrange the equations in the correct sequence to find the inverse of f(x) ?
Solution :
Writing step by step to find inverse,
Step 1 - Interchange y with x,
Step 2 - Cross multiply,
Step 3 - Apply distributive property,
Step 4 - Take y term one side,
Step - 5 Take y common,
Step 6 - Take x term together,
or![y=f^{-1}(x)=\frac{8x}{3-x}](/tpl/images/1301/9757/734a4.png)