Y=4x+3
x+y=-2
help me solve this system with any method

Step-by-step explanation:

I will use substitution

We will substitute the answer for y into the bottom equation

x+(4x+3)=-2

5x+3=-2

5x=-5

x=-1

Now solve for y

(-1)+y=-2

y=-1

Write as an ordered pair

(-1.-1)

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.