MATH SOLVE

9 months ago

Q:
# Choose the equivalent system of linear equations that will produce the same solution as the one given below.4x − y = −112x + 3y = 5 −4x − 9y = −21−10y = −30 4x + 3y = 52y = −6 7x − 3y = −119x = −6 12x − 3y = −3314x = −28

Accepted Solution

A:

a)3(4x-y=-11)=>12x-3y=-33

2x-3y=5

12x-3y=-33

14x=-28

x=-2 then substitute back to equation and 4-3y=5 and y=3

a)(-2,3)

b)y=3 and substitute 3 in equation for y so -4x-27=-21 and x=-3/2

(-3/2,3)

c) y=-3 and substitute it back to equation so there for the 4x-3(3)=5 andx=7/2

(7/2,-3)

d)(-2/3,19/9)

e)(-2,3)

so a and e are the same equations.

Hopes this loves.

2x-3y=5

12x-3y=-33

14x=-28

x=-2 then substitute back to equation and 4-3y=5 and y=3

a)(-2,3)

b)y=3 and substitute 3 in equation for y so -4x-27=-21 and x=-3/2

(-3/2,3)

c) y=-3 and substitute it back to equation so there for the 4x-3(3)=5 andx=7/2

(7/2,-3)

d)(-2/3,19/9)

e)(-2,3)

so a and e are the same equations.

Hopes this loves.