Question

using substitution solve
y=4x+6
y=x+3


if you can do this them I would love for you to pm me so I could get help on the rest of them thank you!

Answer 1

Answer:

Step-by-step explanation:

4x + 6/y=15...(i)

6x-8/y=14......(ii)

Multiply equation (i) by 'y' on both sides,

4xy + 6 = 15y

4xy - 15y = -6.....(iii)

Multiply equation (ii) by 'y' on both sides,

6xy - 8 = 14y

6xy - 14y = 8.......(iv)

 

Multiplying equation (iii) by 3 and (iv) by 2,

    12xy - 45y = -18

    12xy -28y = 16

-    (-)     (+)      (-)

-------------------------

             -17 y = - 34

Thus y = 2

Substituting y = 2 in equation (i),

 

     4x + 6/2 = 15

     4x = 12

Thus x = 3

Guven that y = px - 2

Substitute the values of x and y

2 = p (3) - 2

3 p = 4

p = 4/3

Answer 2

helli check the attachment and gey the answer thanksb