raut86719
raut86719 raut86719
  • 04-03-2021
  • Mathematics
contestada

finds the value of x and Y.
2x+3y=5
X-2y=-1​

Respuesta :

ncalalwazi89
ncalalwazi89 ncalalwazi89
  • 04-03-2021

Answer:

x=1

y=1

Step-by-step explanation:

2x+3y=5.........eq1

x-2y=-1........eq2

therefore: x=-1+2y

Subt. eq 3 into eq2

2x+3y=5

2(-1+2y) +3y=5

-2+4y+3y=5

7y=5+2

7y/7=7/7

y=1

therefore: Subt. y=1 into eq2

x-2y=-1

x-2(1)=-1

x-2=-1

x=-1+2

x=1

Answer Link

Otras preguntas

Frank Genry brief biography
the ratio between the lengths of the edges of two cubes are in the ratio 3:2. find the ratio between their total surface area
23. A candidate who gets 36% marks in an examination fails by 24 marks but another candidate, who gets 43% marks, gets 18 more marks than the minimum pass marks
what is the lcf of 4 and 5
WHAT MASS OF A 7.00% HNO3 SOLUTION BY MASS CONTAINS 74 g OF HNO3?
The sum of three consecutive multiples of 11 is 165. Find these three multiples.​
The two lower chambers of the heart are the ________. 1) ventricles 2) atria 3) aortas 4) valves
lisa borrows $18 000 over 5 years from the bank. The loan is charged at 8.4% p.a. simple interest. Find the total amount owing at the end of 5 years. (2 marks)
Although reconstruction led to some positive changes what major goal did it fall to achieve?
Find the distance between the points (6,8) and (10,5). Write your answer as a whole number or a fully simplified radical expression. Do not round.