506,454 views
40 votes
40 votes
Can you answer this math homework? Please!

Can you answer this math homework? Please!-example-1
User Preetam Jadakar
by
2.5k points

2 Answers

16 votes
16 votes

Answer:

2x+3y=7x4

x+4y=8x3

8x+12y=27

3x+12y=24

8x-3x =5x

+12y-+12y=0

27-24=3

5x/5 3/5x

answer = x = 3/5

y=1.85

User Eugene Kostrikov
by
3.3k points
13 votes
13 votes

Explanation:


x + 3y = 7 \\ 2x + 4y = 8 \\ x = 7 - 3y \\ 2(7 - 3y) + 4y = 8 \\ 14 - 6y + 4y = 8 \\ 14 - 2y = 8 \\ - 2y = - 6 \\ y = 3 \\ x = 7 - 3(3) \\ x = 7 - 9 \\ x = - 2

User Sreeramu
by
2.6k points