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Stels [109]
2 years ago
5

How to solve 3x-y=11, x+2y=6 with the method of elimination?​

Mathematics
1 answer:
zubka84 [21]2 years ago
4 0

Answer:

First point we take the centre number

2[ 3x-y=11]

-1[ x+2y=6]

second we multiply and we adding

6x-2y=22

-x+-2y=-6

_________

5x/5=18/5

x= 3.4

Step-by-step explanation:

third point we take 3x-y=11 any x where we see we change 3.4

3(3.4)-y=11

10.2-y=11

y=10.2-11

y=0.8

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What is the solution to this equation?<br><br> 8x - 5 (x-3) = 18
Kaylis [27]

Answer:

x=1

Step-by-step explanation:

We distribute the negative 5 to x minus three to get 8x-5x+15=18. Then, we cancel out the 15 by subtracting it from both sides. This leaves us with 8x-5x=3. When we subtract, we get 3x=3, and when we divide both sides by 3, we get x=1. Hope this helps :)

3 0
3 years ago
-k+3k combine like terms to create an equivalent expression​
Nimfa-mama [501]

Answer:

2k

Step-by-step explanation:

3k and -k are both like terms, so you can combine them. Adding opposite signs works in the same way as subtraction, so you can rewrite the expression as 3k-k, which is 2k.

8 0
3 years ago
Simplify each expression using the distributive property <br><br>9(-7q-6)​
hammer [34]

Answer:

-63q-54

Step-by-step explanation:

When using the distributive property, you multiply everything inside of the parentheses by the number outside of the parentheses.

9(-7q-6)

-63q-54

Hope this helps, and have a great day o(* ̄▽ ̄*)ブ

5 0
3 years ago
What is the answer to 26=t-19
natali 33 [55]
<h3>YOUR QUERY :</h3>

what is the answer to 26=t-19 ?

Answer:

t = 45, okay

Step-by-step explanation:

=》t - 19 = 26

=》t = 26 + 19 ( by adding 19 on both sides )

=》t = 45

8 0
3 years ago
Least to greatest -.6 -5/8 -7/12 -.72
svlad2 [7]

It would be:

-.72 < -5/8 < -.6 < -7/12


4 0
3 years ago
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