subject
Mathematics, 01.12.2019 23:31 ronaldo22

1) 2x+8y=20
y=2
2x+8(2)=20

2) x=5
2x+y=10
2(5)+y=10

3) 5x-2y=3
y=2x
5x-2(2x)=3

4) 2y+x=-15
x=3y
2y+(3x)=-15

5) 4x+7y=19
y=x+9
4x+7(x+9)=19

6)y=6x+11
2y-4x+14
2(6x+11)-4x+14

7)2x-8y=6
y=-7-x
2x-8(-7-x)=6

8) x=2y-1
3x-2y=-3
3(2y-1)-2y=-3

what is the process and what x and y equal

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
Geometry answer picture question pls . reason and statements
Answers: 3
question
Mathematics, 21.06.2019 19:00
What is the expression in factored form? 3x^2 + 18x + 24 a. 3(x+2)(x+4) b. 3(x-2)(x+4) c. 3(x-2)(x-4) d. 3(x+2)(x-4)
Answers: 2
question
Mathematics, 21.06.2019 19:30
Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row
Answers: 3
question
Mathematics, 21.06.2019 20:30
Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries
Answers: 2
You know the right answer?
1) 2x+8y=20
y=2
2x+8(2)=20

2) x=5
2x+y=10
2(5)+y=10

...
Questions
question
Mathematics, 03.09.2020 05:01
question
Mathematics, 03.09.2020 05:01
question
Mathematics, 03.09.2020 05:01
question
History, 03.09.2020 05:01
question
Mathematics, 03.09.2020 05:01
question
Mathematics, 03.09.2020 05:01
Questions on the website: 13722360