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Jlenok [28]
2 years ago
12

Hello I need help on this question and for the second equation I’m not sure how I would graph that so could you maybe please hel

p me I will give five stars a thanks and Brainliest

Mathematics
2 answers:
Alja [10]2 years ago
4 0

Steps

Take each equation ,then find three or two ordered pairs from each .

  • Then plot on graph
  • Join them apart to form lines

The two lines intersection point is the solution of the system

#7

  • x-y=3
  • 2x+3y=16

Graph attached

  • Solution (5,2)

#8

  • x-y=4
  • x+y=-2

Graph attached

  • Solution (1,-3)

Alborosie2 years ago
3 0

Answer:

Do you want me to solve it on a graph???

Step-by-step explanation:

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What does y equal y-16-3y=0
Afina-wow [57]

Answer:

y = - 8

Step-by-step explanation:

y - 16 - 3y = 0

Group like terms

y - 3y - 16 = 0

Add similar elements: y - 3y = - 2y

- 2y - 16 = 0

Add 16 to both sides

- 2y - 16 + 16 = 0 + 16

Simplify

- 2y = 16

Divide both sides by - 2

\frac{-2y}{-2} = \frac{16}{-2}

Simplify \frac{-2y}{-2}: y

\frac{-2y}{-2}

Apply the fraction rule: \frac{-a}{-b}  = \frac{a}{b}

= \frac{2y}{2}

Divide the numbers: \frac{2}{2}  = 1

= y

Simplify \frac{16}{-2}: - 8

\frac{16}{-2}

Apply the fraction rule: \frac{-a}{-b}  = \frac{a}{b}

-\frac{16}{2}

Divide the numbers: \frac{16}{2} = 8

= - 8

y = - 8

7 0
3 years ago
2. Solve x - 19 <81. Then graph the solution.
mr_godi [17]

Answer:

x<100

Step-by-step explanation:

The given equation is :

x-19<81

Adding 19 to both sides of the equation.

x-19+19<81+19

x<100

It means the solution of the given equation is less than 100. Hence, the attached figure shows the graph for the given equation.

4 0
3 years ago
Simplify. 9x^8-18x^6
GrogVix [38]
You cannot simplify this but you can factorise it:

9x^6 (x^2 - 2)
7 0
3 years ago
I need help with my science about cells​
Alina [70]

Answer:

a. pancreas

other body part is related to urinary system except pancreas as it is related to digestive

b. heart

it is a part of circulatory system whereas other are digestive

c. vagina

as it is female reproductive system

Step-by-step explanation:

3 0
3 years ago
Which is an exponential decay function?
gtnhenbr [62]

Answer:

its f(x) = -2(0.7)x

Step-by-step explanat

trust me

6 0
3 years ago
Read 2 more answers
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