solve each equation system by the addition method -2x+3y=-7 3x+y=16 what is x and y

Question

anonymous · Answer

http://openstudy.com/study#/updates/54e2bea2e4b0db7d6b0f6c2d I had just explained!

anonymous · Answer

-2x+3y=-7
3x+y=16
solve 2nd eq. for y then plug it into eq.1

anonymous · Answer

then solve for x....
after plug x value into 2nd eq. to find y

anonymous · Answer

@KenichiIvy that wasnt correct

triciaal · Answer

to use the addition and elimination method pick one of the variables and make the coefficient of that variable equal and opposite so that when you add the equations the variable will be eliminated.
you will be left with a one variable equation. solve for that unknown. 
substitute this value in one of the original equations to get the value of the other variable.

triciaal · Answer

for this problem I would multiply the 2nd equation by -3 then add to the first

triciaal · Answer

can you verify the original?

triciaal · Answer

the process will not change but the values I have are not integers