Answer:
y= (-5/4)
Step-by-step explanation:
4x-6y=4x+10
y=(-5/4)
x=7/8y+−5/4
Let's solve for x.
y=4x−6y+4x+10
Step 1: Flip the equation.
8x−6y+10=y
Step 2: Add 6y to both sides.
8x−6y+10+6y=y+6y
8x+10=7y
Step 3: Add -10 to both sides.
8x+10+−10=7y+−10
8x=7y−10
Step 4: Divide both sides by 8.
8x
8
=
7y−10
x=
7
y+
−5
4
36 pi
Aera of sphere is : 4 *pi *r^2
A=4 *pi*9=36pi=113
