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Bond [772]
3 years ago
14

4x-2y=12 -4x-9=54 How can you order a ladder?

Mathematics
1 answer:
blagie [28]3 years ago
3 0
Equations:

4x - 2y = 12
-4x - 9y = 54

Multiple them in both sides

4x - 2y - 4x - 9y = 12 + 54
-2y - 9y = 66
-11y = 66
y= -6

If y= -6 then put y in first or second equation.

I put it in first equation

4x - 2.(-6) = 12
4x + 12 = 12
x= 0

Therefore

(x,y) = (0, -6)
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Step-by-step explanation:

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35-40 first with the correct answers will get brainliest
serious [3.7K]

Answer:

35.w/g=m

36. P=1/2Q-15

37. R=IV

38. b=-mx+y

39. a) t=-d-e+f

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Step-by-step explanation:

Explanation for 40:

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first do the parentheses

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next combine like terms

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7 0
3 years ago
1. y = x + 2<br> y=-3x<br> What’s is the answer?
DiKsa [7]

Answer:

x=(-1/2)     y=(3/2)

Step-by-step explanation:

y=x+2      Given

-3x=x+2    Substitute (-3x) for y

-2-3x=x     Subtract 2 from both sides

-2=4x        Add 3x to both sides

(-1/2)=x      Divide both sides by 4.

y=x+2        Given

y=(-1/2)+2   Substitute (-1/2) for x

y=1 1/2

or

y=3/2

3 0
3 years ago
AB=x+5
Fiesta28 [93]

hope it helps you , you can tell me in the comment box

(•‿•)

7 0
3 years ago
Read 2 more answers
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