3 years ago

Plz help me with this question 15 pt

Mathematics

1 answer:

Schach [20]3 years ago

8 0

8 1/2 . answered from desmos calculator

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Use complete sentences to explain in detail how you would use the substitution method to solve the following system of equations

-BARSIC- [3]

If we now that 4y equals to x, that means we can replace x with 4y.

Therefore we can write: 4y+2y = 12
We can summarize that to 6y = 12.
If we divide both sides with 6, you get y = 2

In order to solve for x, we can use the second equation and just replace y with value we just got (y=2).

We can write: x+2*2=12
Now you move 2*2 (which is 4) to the other side: x=12-4
Now you get: x = 8

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3 years ago

Find an equation of a line with the x- and y-intercepts below. Use exact fractions when necessary.

tamaranim1 [39]

Answer:

$y=\frac{5}{7}x-5$