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bulgar [2K]
3 years ago
7

If 2x +y=8, x+2y=4, find the value of x-y. Please, help me

Mathematics
1 answer:
kifflom [539]3 years ago
8 0

y = 8 -2x

x + 2 (8 - 2x) = 1

x + 16 - 4x = 1

x - 4x = -15

-3x = -15

x = 5

If x = 5, then we can substitute in...

5 + 2y = 1

2y = -4

y = -2

Now let us check that by substituting those values in to the equation

2x + y = 8

2 (5) + (-2) = 8

That is correct so we have the right values for x and y/

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PLEASE HELP I HAVE BEEN TRYING TO FIGURE THIS OUT FOR 4 HOURS AND 15 MINUTES
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Answer:

1. C) 3

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= (10 - 2^2)/2

= (10 - 4)/2

= 6/2

= 3

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4. 3(2 + 3)^2

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3 years ago
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6 0
3 years ago
Write an equation in slope form for the line through the given point with the given slope?(8,3);m=5
Inessa05 [86]
Ans:C.
Remember equation Y=MX, and M is Slope.
now we know the line through the given point <span>(8,3)
</span>so put (8,5) into the equation 
then equation Y=MX → (Y-3)=M(X-8)
and Slope M=5 
so (Y-3)=5(X-8)


6 0
3 years ago
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