Solve for x & y. 30x−42y=−6 and 5x−7y=−1
1 answer:
Um.. Both of those equations are the exact same. Divide both sides of the first equation by 6. You get:
That is the exact same as the second equation. This system has an infinite number of solutions. 5x - 7y = -1 is a line, so basically every point on that line is a solution to the system.
For example,
and 
would work, but so would 
and 
That is the exact same as the second equation. This system has an infinite number of solutions. 5x - 7y = -1 is a line, so basically every point on that line is a solution to the system.
For example,
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<em><u>Answer:</u></em>
The answer is A) The y-intercept of function A is greater than the y-intercept of function B.
<em><u>Step-by-step explanation:</u></em>
We can see by graphing function A that the y-intercept (where the graph crosses the y-axis) is (0,3). For function B, we can see that the y-intercept is (0,2). Therefore, we know that 3 is greater than 2, so the y-intercept for function A is greater than that of function B. <em>I'll attach a photo of the first function graphed online.</em>
Hope this helps! Feel free to give me Brainliest if you feel this was helpful. Have a good day and good luck on your assignment! :)
Answer:
x = -3
In-Depth Steps:
1.) Start with the bottom equation:
2.) Set alone on one side of the equal sign. Your equation will look like
.
3.) Plug in for
in the first equation. You will get
.
4.) Distribute. Your equation now looks like this: .
5.) Combine like terms. You will get .
6.) Subtract 6 from both sides. You get . We can learn that Y=0.
7.) Go back to either equation and put 0 in for y.
8.) In the top equation, it would look like and the bottom equation would look like
. We basically got our answer of
, but we will plug it into the
equation, and in-fact, we get x = -3.