1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Daniel [21]
3 years ago
10

Y=-3/2x+9 2x+2y=16 how to solve it by using substitution

Mathematics
2 answers:
Paha777 [63]3 years ago
6 0
Y=-3/2x+9
or
y+3/2x=9, or 2y+3x=18
2y+2x=16. -
2y+2x=16

x=2
y=6. Hope it help!
ycow [4]3 years ago
3 0
Equation 1)  y = -3/2x + 9
Equation 2)  2x + 2y = 16

Add 3/2x to both sides of equation 1.

1)  3/2x + y = 9

Then, multiply all of equation one by 2.

1)  2(3/2x + y = 9)

1)  3x + 2y = 18
2)  2x + 2y = 16

Subtract.

x = 2

Plug in 2 for x in the first equation.

y=-3/2x+9

y = -3/2(2) + 9

y = -3 + 9

y = 6

So, x=2 and y = 6

~Hope I helped!~
You might be interested in
How many solutions to y=2x-3 y=-x+3
Ivan

Answer:

y = 1

Step-by-step explanation:

I dunno what you need but that's the answer to y...

8 0
3 years ago
Read 2 more answers
Composite Figures Question 9.<br> A. 57 ft <br> B. 288 ft<br> C. 208 ft<br> D. 264 ft
Elden [556K]

Answer:

D

Step-by-step explanation:

find area of first rectangle

18 x 6 = 108

find area of second rectangle

20 x 5 = 100

find area of two triangles

7 x 8 =56

56/2 = 28

each triangle has an area of 28

28+28+100+108 = 264ft

8 0
3 years ago
Y=2x-10 substitution <br> Y=4x
Arada [10]
X=5
 Work:

y=2x-10
4x=2x-10
2x=10, then divide 2x on each side
x=5
4 0
3 years ago
Find the area of the shape.<br> 77 cm<br><br> 8/ 12cm<br> Please help
mestny [16]

Answer:

area of B or another side tell fast I will answer

4 0
2 years ago
Simplify <br> 5) 7+8.3(-7.7t + 4n) + 5.6n - t +3.8
Veseljchak [2.6K]
Answer: 10.8-62.91t+38.8n
Step-by-step explanation:
7 0
2 years ago
Other questions:
  • A gardener wants to run a border around the outside of her garden. She plots it on a grid to plan how much she will need. The ga
    8·1 answer
  • Find the x value so that the line through the points (x,-9) and (0,1) has a slope of -4
    11·1 answer
  • What is the GCF of 8,18
    5·1 answer
  • How many real solutions does the equation y2− 8y + 16 = 0 have?
    15·1 answer
  • -4x-y+4 when x=-1 4 and y=3
    11·2 answers
  • Given: 3x = 5 (x − 4) Prove: x = 10
    13·1 answer
  • The areas of two rectangles can be represented by the functions shown. Which function represents the difference in the areas h(x
    12·1 answer
  • Wade has $475 in a savings account at the
    6·1 answer
  • Which quantity could go in the blank to make the equation true?
    13·1 answer
  • For a moving object, the force acting on the object varies directly with the object's scceleration. When a force of 90 N acts on
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!