Please help me I don’t understand this

1) false

2) true

3) (-2,2)

Step-by-step explanation:

use the coordinates for 1,2 into the equations under to check if the coordinate answer is correct or not. for the first coordinate, equation one is correct but equation two doesn't work with the coordinate.

for question 3, look at where the lines intercept on the graph

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!