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BartSMP [9]
3 years ago
8

Y=2x+5 and y=3x+11 solve by substitution.

Mathematics
1 answer:
kondaur [170]3 years ago
6 0

Answer:

Answer: x= -6 and y= -7

Step-by-step explanation:

Substitute 2x+5 for y in y=3x+11:

y=3x+11

2x+5=3x+11

2x+5+−3x=3x+11+−3x(Add -3x to both sides)

−x+5=11

−x+5+−5=11+−5(Add -5 to both sides)

−x=6

−x−1=6−1(Divide both sides by -1)

x=−6

Step: Substitute −6 for x in y=2x+5:

y=2x+5

y=(2)(−6)+5

y=−7(Simplify both sides of the equation)

-Source: MathPapa

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Can someone explain step by step how to do this. Thanks
lakkis [162]
Hi there! The answer is k = 16

To find our answer we only need to collect the terms. In other words: we need to subtract all the values of k.

Example:
18k - 11k = 7k

If you don't get this, you can try to understand it by using a story: in a cage, there are 18 koalas, 11 of them leave. How many are left?

18 koalas - 11 koalas = 7 koalas
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Now we keep doing this again and again to find our final answer:

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~Hope this helps you!
4 0
4 years ago
in the United States in 1980 approximately 60 million families have TVs in their home in 2015 there were almost 100,000,000 fami
Colt1911 [192]

Answer:

40,000,000 (40 million)

Step-by-step explanation:

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5 0
3 years ago
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EastWind [94]
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3 years ago
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you spend $50 on a meal for you and your friends. graph the equation 1.5y+4x=50. y =number of sandwiches bought and x= number of
Drupady [299]
Start by listing this until you see that X+Y = 50
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6 0
3 years ago
Read 2 more answers
The function models the number of accidents
Ainat [17]

Answer:

f(60)=280

Step-by-step explanation:

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This mean that a driver of 60 years old will have 280 accidents per 50 million miles driven.

6 0
4 years ago
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