asked 113k views
17 votes
— 4х + 7y = 20
у = 3х + 15

1 Answer

4 votes

Answer:

x=-5

Explanation:


-4x+7(3x+15)=20\\ -4x+21x+105=20\\ 17x+105=20\\ 17x=20-105\\ 17x=-85\\ x=-5

answered
User Harry Stevens
by
7.4k points

Related questions

asked Apr 2, 2021 146k views
Jonathan Chang asked Apr 2, 2021
by Jonathan Chang
8.2k points
1 answer
1 vote
146k views
asked Oct 1, 2021 42.5k views
DoTheEvo asked Oct 1, 2021
by DoTheEvo
8.5k points
1 answer
5 votes
42.5k views
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.