(-5x+7y=11) - (-5x+3y=19) =
4y = -8. (divide both sides by 4)
y = -2
Substitute
-5x + 7(-2) =11
-5x - 14 =11
-5x = 25
x = -5
y = -2 and x = -5
Answer:
i dont get how this is a math question
and can you post a screenshot so i can understand it better
Step-by-step explanation:
Answer:
8 ft^2
Step-by-step explanation:

area of ABC is:

area of ABC is 18 square ft, then

now you can find h1 and the area for EFG