Ill give brainliest and 5 stars and thanks if answer this what is the result of substituting for y in the bottom equation

y=x+3

y=x^2+2x-4

We have two set of solutions , (    ,   + 3 ) , (  - + 3 ,  - + 3).

Step-by-step explanation:

We have , the following equations:

 and . Let's substitute value of y in bottom equation:

⇒

⇒

⇒

Roots of quadratic equation are given by: a = 1, b= 1 , c = -7

⇒

⇒

⇒ which is actually x = ± .

We know that ,

⇒ y = ± + 3.

We have two set of solutions , (    ,   + 3 ) , (  - + 3 ,  - + 3).

answer: give more info

step-by-step explanation:

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4