sebekedibaboloki sebekedibaboloki
  • 18-11-2019
  • Mathematics
contestada

1. solve for x and y
2x-y=1
2x+2y=10

Respuesta :

jimrgrant1 jimrgrant1
  • 18-11-2019

Answer:

(2, 3 )

Step-by-step explanation:

Given the 2 equations

2x - y = 1 → (1)

2x + 2y = 10 → (2)

Subtract (2) from (1) term by term to eliminate x

2x - 2x - y - 2y = 1 - 10, that is

- 3y = - 9 ( divide both sides by - 3 )

y = 3

Substitute y = 3 into either (1) or (2) for corresponding value of x

Substituting in (2)

2x + 2(3) = 10

2x + 6 = 10 ( subtract 6 from both sides )

2x = 4 ( divide both sides by 2 )

x = 2

Solution is (2, 3 )

Answer Link

Otras preguntas

During the bitter struggle over reconstruction policy, Congress overrode Johnson's veto of the A. bill intended to nullify the South's black codes. B. bill exte
What is 1/10 of 200
What is 1/10 of 200
Is sunlight an example of mechanical wave ?
The atomic number of nickel-60 is 28. How many neutrons does this isotope have?
Choose the possible number of solutions for these equations.2x = 2y + 22y = 2x - 2
Divide 80 in a ratio of 3:2
0.6 is 10 times as much as...
If you were a reform-minded person who, above all, loathed the social problems associated with alcohol, you would have been especially sympathetic to the A. ev
If you were a reform-minded person who, above all, loathed the social problems associated with alcohol, you would have been especially sympathetic to the A. ev