What is the value of the x variable in the solution to the following system of equations?
2x + 3y = 1
3x - 4y = 10

2

-1

1

-2

Question

What is the value of the x variable in the solution to the following system of equations?
2x + 3y = 1
3x - 4y = 10 

 2 

 -1 

 1 

 -2

anonymous · Answer

mulitply first by 4 and second by -3

anonymous · Answer

2

anonymous · Answer

sorry second  by 3

hero · Answer

Add both equations together:

5x - y = 11
y = 5x - 11

substitute that into the first equation
2x + 3(5x - 11) = 1
2x + 15x - 33 = 1
17x = 34
    x = 34/17
    x = 2

anonymous · Answer

what about this one?
For the following system, if you isolated x in the second equation to use the Substitution Method, what expression would you substitute into the first equation?

 3x + y = 8
 -x - 2y = -10 

 -2y + 10 

 2y + 10 

 2y - 10 

 -2y - 10