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aliya0001 [1]
4 years ago
8

Y=3x y=7x+16 systems of equations

Mathematics
1 answer:
pishuonlain [190]4 years ago
4 0
Equation 1)  y = 3x
Equation 2)  y = 7x + 16

For both equations, move x to the left side, so that x and y are on the same side. To do so, subtract 3x from equation 1, and subtract 7x from equation 2.

So now, we have : 

1)  - 3x + y = 0
2)  -7x + y = 16

Subtract equations from each other.

4x = -16

Divide both sides by 4.

x = -4

Plug in -4 for x in first equation.

y = 3x

y = 3(-4)

y = -12

(-4, -12)

~Hope I helped!~
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Step-by-step explanation:

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4 years ago
How many 16-ounce bottles would be needed to hold the same total amount of water 56 bottles that each holds 20 ounces
snow_lady [41]

70 bottles will hold 16 ounces amount same as 56 bottles hold 20 ounces.

Step-by-step explanation:

Given,

56 bottles hold 20 ounces each.

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According to the given statement both amounts are same;  

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70 bottles will hold 16 ounces amount same as 56 bottles hold 20 ounces.

Keywords: Division, Multiplication

Learn more about division at:

  • brainly.com/question/2035523
  • brainly.com/question/2088305

#LearnwithBrainly

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