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11x -20y=28 3x+4y =36

11x -20y=28 3x+4y =36
asked 189k views
3 votes
11x -20y=28 3x+4y =36

asked
User Dajames
by
8.3k points

2 Answers

3 votes

Answer:

x = 8

y = 3

Explanation:

11x - 20y = 28

3x + 4y = 36

11x - 20y = 28

11x = 20y + 28

x =
(20)/(11)y +
(28)/(11)

3x + 4y = 36

3 (
(20)/(11)y +
(28)/(11) ) + 4y = 36


(104)/(11)y =
(312)/(11)

y = 3

x =
(20)/(11)y +
(28)/(11)

x =
(20)/(11) ( 3 ) +
(28)/(11)

x = 8

answered
User Pablo Pantaleon
by
8.6k points
5 votes
Answer: X is equal to 8 and Y is equal to 3
answered
User Brad Conyers
by
8.5k points
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