IDNLearn.com provides a reliable platform for finding accurate and timely answers. Find the answers you need quickly and accurately with help from our knowledgeable and dedicated community members.

What is the solution to this system of linear equations? 3x + 4y = 11, x+4y=9

Sagot :

3x+4y=11
4y=11-3x
Substituting this into x+4y=9
X+11-3x=9
-2x=9-11
-2x=-3
2x=3
X=3/2
Substituting this into x+4y=9
3/2+4y=9
4y=9-3/2
4y=18/2-3/2
4y=15/2
Y=15/2/4
Y=15/8

X=1 1/2
Y=1 7/8