SOLUTION: 2x+y=8 3x-7y=-34 Solve by addition..... I have tried over and over again to solve this.

Question 626828: 2x+y=8
3x-7y=-34
Solve by addition..... I have tried over and over again to solve this.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
2x + y = 8
3x -7y =-34
multiply the 1st equation by 7, add to the 2nd equation
14x + 7y = 56
3x - 7y = -34
----------------addition eliminates y, find x
17x + 0 = 22
x =
:
Find y using the 1st equation, replace x with 22/17
2(22/17) + y = 8
+ y = 8
y = 8 -
make 8 into an improper fraction
y = -
y =
:
:
Check these annoying solutions on your calc using the 2nd equation;
enter: 3(22/17) - 7(92/17) results - 34
RELATED QUESTIONS
Solving systems by elimination how do i solve this: {2 over 3x -3y = 1 over 5... (answered by ankor@dixie-net.com)

How do I solve by addition method? 3x-7y=1 2x-7y=3 (answered by Alan3354)

Solve by the addition method 5x-2y= -1 7y= 24 -3x This is what I have tried: I... (answered by rfadrogane)

Solve by elimination How do I solve 4x-3y=39 -3x-4y=23 I have... (answered by CharlesG2)

solve by addition method. 2x-6y=0... (answered by josgarithmetic,MathTherapy)

2x+3y=3 3x-7y= -30 solve system by addition method. Solve for... (answered by Alan3354)

I am studying for a college entrance exam and am stumped by this question. I tried to... (answered by drk,richwmiller)

Please, I have tried this one several times. Solve the equation {{{7+3t over 4 = -t over (answered by atif.muhammad)

Hi I am trying to solve this system 2x+4y=8 3x+10y=18 I tried the addition method... (answered by mananth)