Answer:
x=−3 and y=7
Step-by-step explanation Solve: 7x+2y=−7for x:
7x+2y=−7
7x+2y+−2y=−7+−2y(Add -2y to both sides)
7x=−2y−7
7x
7
=
−2y−7
7
(Divide both sides by 7)
x=
−2
7
y−1
------------
−2
7
y−1forxin11x+5y=2:
11x+5y=2
11(
−2
7
y−1)+5y=2
13
7
y−11=2(Simplify both sides of the equation)
13
7
y−11+11=2+11(Add 11 to both sides)
13
7
y=13
13
7
y
13
7
=
13
13
7
(Divide both sides by 13/7)
y=7
------------------------
Substitute7foryinx=
−2
7
y−1:
x=
−2
7
y−1
x=
−2
7
(7)−1
x=−3(Simplify both sides of the equation)
Answer:
I would defend this
Step-by-step explanation:
This makes sense because April is the rainiest month of the year. It's even shown in the say that April showers bring May flowers.
Answer:
Height, 24, 80, and cubic feet
Step-by-step explanation:
I just did this on edge-unity and it gave me that.
Answer: The number is 14
Step-by-step explanation:
A number is increased by 20: (X + 20)
Then doubled: 2(X + 20)
5 times the number: 5X
2 less than 5 times the number: 5X - 2
Setting the bold statements equal: 2(X+20) = 5X - 2
Distribute left side: 2X + 40 = 5X - 2
Move X's: 40 = 3X - 2
Move numbers: 42 = 3X
Divide both sides by 3: X = 14
