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PSYCHO15rus [73]
3 years ago
12

Solve for y in the first equation x + 3y = 6 2x − y = 10

Mathematics
1 answer:
serious [3.7K]3 years ago
8 0

Solve equation [1] for the variable x [1] x=(3y+6)

Plug this in or variable x in equation [2]

[2] 2(-3y+6)-y= 10

[2] -7y=-2  

// solve equation [2] for the variable y

[2]   7y= 2

[2]    y=2/7

By now we know this much  

X= -3y+6

Y=2/7

Use the y value to solve for x  

X=-3(2/7)+6=36/7

(x,y)=(36,7), (2/7)  


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Answer:

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Step-by-step explanation:

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4 years ago
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4 0
4 years ago
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ella [17]
X=number of years that Ethas was 5 times older than his son.
we suggest this equation:

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8 0
4 years ago
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Find 3/7 • 9/10 as a fraction
Lynna [10]

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Step-by-step explanation:

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Next, you multiply the denominators. 7x10 is 70. That's the denominator to the answer.

Put them together and you get 27/70.

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3 0
3 years ago
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Margaret [11]

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Step-by-step explanation:

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5 0
4 years ago
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