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Digiron [165]
2 years ago
10

Solve the system using a matrix. NEED HELP ASAP!!:):)

Mathematics
2 answers:
icang [17]2 years ago
7 0

1,-4 sorry if wrong :(

natali 33 [55]2 years ago
4 0

Step-by-step explanation:

1.3x+2y=13

3x+2y+-2y=13+-2y

3x=-2y +13

3x/3=2y+13/3

The answer is x= -2/3 y+13/3

2.x= -2/3 y+ -1/3 z +13/3

3.x= -1/5 y +9/5

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Simplify and expand the equation below <br>7(2-x)-(x-3)​
Tanya [424]

Answer:

- 8x + 17

Step-by-step explanation:

7(2 - x) - (x - 3)​

14 - 7x - x + 3

- 8x + 14 + 3

- 8x + 17

3 0
2 years ago
2x+34=6-5x pls help show work I’ll mark as brainliest!!
fomenos

Answer:

x = -4

Step-by-step explanation:

2x + 34 = 6 - 5x

Subtract 34 from both sides.

2x = -28 - 5x

Add 5x to both sides.

7x = -28

Divide both sides by 7.

x = -4

Proof:

2x + 34 = 6 - 5x

Substitute variable.

2(-4) + 34 = 6 - 5(-4)

Multiply.

-8 + 34 = 6 + 20

Add.

26 = 26

4 0
3 years ago
Read 2 more answers
Combine the like terms to create an equivalent expression. k + k + k *
Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

Ok, so pretend each k has a 1 in front of it. so 1k+1k+1k= 3k. If you need a different equation, you can do 2k+1k=3k or something like that. :)

7 0
3 years ago
Please help me Will give brainliest for first answer<br> 12x=12*14+24x<br> Find the value of x
abruzzese [7]
The Value of X should be 50 because, 12x = 12 so then you add (14+24)= 38 and 12 + 38 =50 

Hope This Helped you! :D
6 0
3 years ago
Read 2 more answers
∠DFG and ∠JKL are complementary angles. m∠DFG = x + 5, and m∠JKL = x − 3. Find the measure of each angle.
chubhunter [2.5K]

Answer:

A

Step-by-step explanation:

complementary angles are 90 degrees so if we add both angles together we get 90 degrees. the equation is x-3+x+5=90. then we do algebra and so it goes to x-3+x=85 then to x+x=88 then to 2x = 88 then to x = 44. now we just do 44+5=49  44-3=41

8 0
3 years ago
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