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Alenkinab [10]
3 years ago
7

What is the value of y in the following system? y=3x-5 6x+3y=15

Mathematics
2 answers:
charle [14.2K]3 years ago
8 0

Step-by-step explanation:

y=3x-5

6x+3y=15

6x+3(3x-5)=15

6x+9x-15=15

15x-15=15

+15 +15

15x=30

/15. /15

x=2

6(2)+3y=15

12+3y=15

-12. -12

3y=3

/3 /3

y=1

(2,1)

The answer is (2,1)

8090 [49]3 years ago
6 0

Step-by-step explanation:

6x + 3(3x - 5) = 15

6x + 9x - 15 = 15

15x - 15 = 15

+15 +15

15x = 30

/15 /15

x = 2

6(2) + 3y = 15

12 + 3y = 15

-12 -12

3y = 3

/3 /3

y = 1

(2, 1)

This should be right if it is please make me brainliest.

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I need help on these few problems I'm flunking in math if I get this I will get a c or b please help
Romashka [77]
Before you begin, familiarize yourself and keep in mind the order of operations- PEMDAS (parenthesis, exponents, multiplication, division, addition, subtraction). You must do all math problems using this.

17.  Add all the numerators since they are like-terms. 12/3 – then simplify it – 4.

18.  Do the inner most parenthesis first, add the numerators – 3/5. To multiply a fraction and a whole number, multiply the numerator and the whole number, and then simplify – 15/5, 3, then divide 15 by 3 –  and your answer is 5.

19. Parenthesis first – 10/6. Then multiply the numerator and the whole number and simplify – 120/6 – 20.

20. Parenthesis – 4.2 – multiply by 8 – 33.6.

21. Parenthesis – 4 – multiply by 3.6 – 14.4.

22. PEMDAS, so division goes before subtraction – 8.4.

Try the rest for yourself; that’s the only way you’ll learn. Feel free to message me for more help.





4 0
3 years ago
Simplify: 2(x-3)-10x+7
UkoKoshka [18]

Answer:

-8x - 13

Step-by-step explanation:

I'm not sure if this is correct or not, sorry.

4 0
4 years ago
What is 4/5 plus 2/3
omeli [17]

Answer:

1 \frac{7}{15}  or

\frac{22}{15}

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Oliver and Peter had the same length of string. Oliver used 3/4 of his string to tie a bundle of newspaper. Peter used 6/8 of hi
solmaris [256]

Answer:

Yes they did.

Step-by-step explanation:

So you have the fraction 3/4 and 6/8. If you divide the fraction 6/8 by 2 you will get 3/4 since 6/8 is an unsimplifed form of 3/4.

7 0
4 years ago
Treble 29 = 160- ?<br><br> By the way, treble is triple. Please answer correctly! This is for Maths.
nika2105 [10]
29 = 160 - x

x = ?

160 - 29 = 131

SO x = 131

Check:-
 
160 - 131 = 29

SO,

29 = 160 - 131.

Hope i helped ya! 

7 0
3 years ago
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