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rosijanka [135]
2 years ago
15

Y = 5x – 2 y = x + 6 What’s the Solutions

Mathematics
1 answer:
algol132 years ago
8 0
Solve equation [2] for the variable y


[2] y = x + 6

// Plug this in for variable y in equation [1]

[1] (x +6) - 5x = 2
[1] - 4x = -4
// Solve equation [1] for the variable x


[1] 4x = 4

[1] x = 1
// By now we know this much :

y = x+6
x = 1
// Use the x value to solve for y

y = (1)+6 = 7
Solution
{y,x} ={7,1}
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5 0
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If 5a=-4b+5 and 3a=-2b+3, what is 6b?
Misha Larkins [42]
There are two equations and two variables. You can solve for each variable using either the elimination method or the substitution method. Here, I believe the elimination method would be best:
5a = -4b + 5
3a = -2b + 3
You can multiply the second equation by two, so the 4b and -4b in both equations will cancel each other out when you add them. So:
5a = -4b +5
6a = 4b +6
Add both equations together.
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5(1) = -4b + 5
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b = 0
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6 0
3 years ago
Here you go the brainless
Mrac [35]
m= \frac{y_1-y_2}{x_1-x_2}  \\ m= \frac{4-(-1)}{-4-1 } \\ m= \frac{5}{-5} \\ m=-1
4 0
3 years ago
Jane sold a radio costing sh.3800 at a profit of 20%.She earned a commission of 22 1/2% on the profit.Find the amount he earned
aalyn [17]

Answer:

20%=3800 => all of it is 19000

i didn't undrestand what do you want

sorry:)

3 0
2 years ago
What is the square root of 240
Anuta_ua [19.1K]

Answer:

15.4919333848

Step-by-step explanation:

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