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svp [43]
3 years ago
10

Y = 7x – 16, y = 2(2x – 5) What is the solution?

Mathematics
1 answer:
Marizza181 [45]3 years ago
3 0
7x - 16 = 2(2x - 5)
7x - 16 = 4x - 10
7x - 4x = 16 - 10
3x = 6
x = 2 

y = 7*2 - 16 = 14 - 16 = - 2

Answer
( 2; - 2)
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amm1812

Answer:

\underline{ \boxed{ \frac{1}{27} }}

Step-by-step explanation:

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3 years ago
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John made a rectangle pen for his dog using 28 feet of fencing. If the width of the pen is 2 feet more than one-half the length,
kati45 [8]
Okay, so you know that the perimeter of the pen is 28 feet. Now we need the separate side lengths.

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Distribute the 2's and solve as needed.
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To find the width, just plug in 8 for x in our little equation:
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5 0
3 years ago
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Which could be the first step in solving this system of equations by substitution?
Ainat [17]

Answer:

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solve and get

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Step-by-step explanation:

The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x

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Cross multiply

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Divide both side by 0.6947

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5 0
4 years ago
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