Question

This is hopefully the last one i'll need help with

Answer 1

System A System B
2x + y = 5 -10x + 19y = -1
-4x + 6y = -2 -4x + 6y = -2
Which of the following statements is correct about the two systems of equations?

Answer 2

They will have the same solutions because the first equation of System B is obtained by adding the first equation of System A to 2 times the second equation of System A.

They will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 3 times the second equation of System A.

The value of x for System B will be –5 times the value of x for System A because the coefficient of x in the first equation of System B is –5 times the coefficient of x in the first equation of System A.

The value of x for System A will be equal to the value of y for System B because the first equation of System B is obtained by adding –12 to the first equation of System A and the second equations are identical.

Answer 3

i think this problem is scaring people away...

Answer 4

```
System A System B
2x + y = 5 -10x + 19y = -1
-4x + 6y = -2 -4x + 6y = -2
```

multipy the second equation of system A by 3, what do you get ?

Answer 5

i dont understand what you're asking

Answer 6

look at system A, how many equations are there ?

Answer 7

2?

Answer 8

whats the second equation ?

Answer 9

A & B :
-4x + 6y = -2

Answer 10

multiply both sides of that equation by 3, what do u get ?

Answer 11

-12x+18y=-6?

Answer 12

Excellent!
next add that equation and the first equation

Answer 13

2x + y = 5
-12x+18y=-6
-------------------
-10x + 19y = -1

which is same as the first equation of system B !

Answer 14

They will have the same solution because the first equation of System B is obtained by adding the first equation of System A to 3 times the second equation of System A.