34.9k views
2 votes
Given that 4 x - 5 y = 21 find x when y = - 4 give your answer as a fraction in its simplest form​

User Gnjago
by
4.8k points

1 Answer

4 votes

Answer:

x=-1/4

4x-5(-4)=21

4x+20=21

4x=1

x=1/4

User Ballu Rocks
by
4.7k points