WILL FAN AND MEDAL!!!!
Solve the system of equations.

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

(-2, 5)
(1, 4)
(2, -1)
(4, -4)

Question

WILL FAN AND MEDAL!!!!
Solve the system of equations.

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

(-2, 5)
 (1, 4)
 (2, -1)
 (4, -4)

ribhu · Answer

Multiply the first equation by 2

anonymous · Answer

ok

ribhu · Answer

then subtract the 2nd from 1st equation

anonymous · Answer

wait would you plug in 2 for one of the variables

ribhu · Answer

you will get x, and substituting the value of x in any of those equation you will get y, hence the question is solved

ribhu · Answer

10x+2y=18
3x+2y=4
subtracting we get 
7x=14
x=2

ribhu · Answer

putting x=2 in 2nd equation we get 
3(2)+2y=4
y=-1

anonymous · Answer

oh thank you but I just solved it by plugging the options given to me but thanks because that will help on non multiple choice test

ribhu · Answer

ok