Question

2a+3b=-1, 3a+5b=-2 using the elimination method. please help

Answer 1

With the elimination method, we want to eliminate one of the variables;
2a + 3b = -1
3a + 5b = -2
We will multiply the first equation with -3 and the second with 2, so we can eliminate the a;
-3(2a+3b=-1)
2(3a+5b=-2)
new equations;
-6a-9b=3
6a+10b=-4
Add the two equations together, and you can eliminate the a;
b=-1
Now plug the -1 into one of the original equations;
2a+3(-1)=-1
2a-3=-1
2a=2
a=1
:)

Answer 2

thank you so much for your time, this is very helpful