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kondaur [170]
2 years ago
9

X+2y=2 and -x+y=-5. Please help

Mathematics
1 answer:
salantis [7]2 years ago
5 0

Answer:

x=4

y=-1

Step-by-step explanation:

x + 2y = 2

-x + y = -5

3y = -3

y = -1

If you would then plug in -1 (for y) then you would get x=4

For example:

x + 2(-1) = 2

x - 2 = 2

x = 4

OR

-x - 1 = -5

-1 + 5 = x

4 = x

x = 4

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zubka84 [21]
So, standard form basically takes the shape of Ax+By=C. You want all of your variables to be on the left side and your constant on the right. There can also be no fractions!

In your case, since you didn't mention a y value for y, your line is y=-3/2x+6

first we get rid of the fraction by multiplying both sides of the equation by 2:
(2)y= (-3/2x+6)(2) and get
2y=-3x+12
now all there is left to do is get x to the other side by adding it to both sides:
3x+2y=12 is your final answer
8 0
3 years ago
Can somebody plz answer all of them correct! (Only if u done this before)
swat32

Answer:

23) 53/100

24)2/5

25)3/5

26)11/50

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31)9/25

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Step-by-step explanation: Hope this helps!

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2 years ago
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timama [110]

Answer:

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5 0
3 years ago
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lozanna [386]

Answer:

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Step-by-step explanation:

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What this means in exponential form is that;

3^(-2y + 6) = (-2x+1)

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