SOLUTION: 2x+3y=9 3x+4y=5

Algebra.Com
Question 551553: 2x+3y=9
3x+4y=5

Answer by mananth(16946)   (Show Source): You can put this solution on YOUR website!
2 x + 3 y = 9 .............1
3 x + 4 y = 5 .............2
Eliminate y
multiply (1)by -4
Multiply (2) by 3
-8 x -12 y = -36
9 x 12 y = 15
Add the two equations
1 x = -21
/ 1
x = -21
plug value of x in (1)
2 x + 3 y = 9
-42 + 3 y = 9
3 y = 9 + 42
3 y = 51
y = 17

RELATED QUESTIONS

2x+3y=9 3x+4y=5 Solve using substitution (answered by mananth)
3x+5y=9... (answered by checkley77)
1) -3y=0 2) -5x+24y=200 3) 2x-3xy+5y=10 4) 3x-4y=`24 5)... (answered by ikleyn)
Solve each system by the substitution method. x – y = 5 2x = 2y + 14 3x + y... (answered by midwood_trail)
Learning how to graph 2x+y=-5... (answered by mananth)
2x-3y=-14... (answered by JBarnum)
2x+3y=9.... (answered by lynnlo)
2x+3y=9.... (answered by lynnlo,jim_thompson5910)
2x+3y=7 3x+3y=9 (answered by Seutip)