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4 years ago

What is the solution the the system of equations graphed below y=-2x-4 y=x+2

2 answers:

8 0

Y = 2x - 4
y = x + 2

2x - 4 = x + 2
2x - x = 2 + 4
x = 6

substitute x = 6 into one of the first 2 equation, i chose the 2nd one.
y = 6 + 2
y = 8

Natali5045456 [20]4 years ago

5 0

Answer:

(-2,0)

Step-by-step explanation:

y=-2x-4

y=x+2

------

x+2= -2x-4
3x=-6
x=-2
y=x+2=-2+2=0

(-2, 0) is the answer

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23 + 8m + 4n - 5m - 27

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Answer:

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Step-by-step explanation:

In this question, you are combining like terms, meaning doing equations to numbers that fit with only each other.

So we should start on the number without variables:

23 and 27

Match them up together and you should find your first equation:

23 - 7

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So we should have -4 + 8m + 4n - 5m

Now we should combine the numbers with the variable of m:

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Match them up together and you should find your first equation:

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So we should now have -4 + 3m + 4n

Since there are no other variables of n, we are all done:

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