Question

elimination using multiplication
2m +3n=4
-m + 2n= 5
Please Help!!!!

Answer 1

2m +3n=4
-m + 2n= 5

Multiply by 2 (-m + 2n = 5)
-2m + 4n = 10
2m + 3n = 4
Add the two equation
0 + 7n = 14
7n = 14
n = 2

To find m,
substitute n = 2 in 2m + 3n = 4
and solve for m

I'll let you finish

Check your answers when you find m

Answer 2

2m+3n=4

2m+3*2=4

2m+6=4

2m=4-6

2m= -2 Divide with 2

m= -1

n=2 m= -1

2m +3n=4

Check of results:

2m+3n=4
2*( -1)+3*2=-2+6=4

-m+2n=5
-( -1)+2*2=1+4=5

Answer 3

i ahve no idea i need help!!!!!