Question

Choose the equivalent system of linear equations that will produce the same solution as the one given below.

4x - y = -11
2x + 3y = 5

Answer 1

you can multiply both be 2 or any constant and they will still be the same system

Answer 2

A. -4x - 9y = -19
-10y = -30

B. 4x + 3y = 5
2y = -6

C.7x - 3y = -11
9x = -6

D. 12x - 3y = -33
14x = -28

Answer 3

you can also make a new equation which is the addition of both of these equations and that can be one new equation you can use

Answer 4

D. 12x - 3y = -33
14x = -28

Answer 5

the first equation got multiply by 3
and then for the 2nd equation u add the first equatio nand the 2nd equation,

Answer 6

do you want more of an explanation

Answer 7

( 4x - y = -11 ) *3
12x-3y=-33
-12x+3y=33 <-- multiply everything 1 now look at this
-14x+2x+3y=28+5, all i did was rewrite hte -12 to -14+2
now look at this part in the middle we know that 2x+3y =5 already so
-14x+(2x+3y)=28+(5)
-14x=28 <--- this means this has to be true
2x + 3y = 5

Answer 8

3rd step should say multiply everything by -1*