subject
Mathematics, 08.01.2020 14:31 lizzy2951

2x + y = 3
x - 2y = -1

if equation one is multiplied by 2 and then the equations are added, the result is

3x = 2
3x = 5
5x = 5

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 18:30
41/17 as a decimal rounded to the nearest hundredth
Answers: 1
question
Mathematics, 21.06.2019 19:40
Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15
Answers: 1
question
Mathematics, 21.06.2019 21:30
Which of the following disjunctions is true? 4 + 4 = 16 or 6 - 5 = 11 4 · 3 = 7 or 3 - 2 = 5 8 - 5 = 13 or 7 · 2 = 12 7 - 4 = 11 or 6 + 3 = 9
Answers: 1
question
Mathematics, 21.06.2019 22:30
What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955
Answers: 1
You know the right answer?
2x + y = 3
x - 2y = -1

if equation one is multiplied by 2 and then the equations a...
Questions
Questions on the website: 13722362