x=4x+3
Simplifying
x = 4x + 3
Reorder the terms:
x = 3 + 4x
Solving
x = 3 + 4x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4x' to each side of the equation.
x + -4x = 3 + 4x + -4x
Combine like terms: x + -4x = -3x
-3x = 3 + 4x + -4x
Combine like terms: 4x + -4x = 0
-3x = 3 + 0
-3x = 3
Divide each side by '-3'.
x = -1
Simplifying
x = -1
Cost price + coupon (3 dollars) = original price.
<span>She would feed them 6 times in 3 days.</span>
Easy
V=LWH
V=x³+9x²+6x-16
L=x+2
H=x+8
W=?
so
x³+9x²+6x-16=(x+2)(?)(x+8)
x³+9x²+6x-16=(x+2)(x+8)(?)
x³+9x²+6x-16=(x²+10x+16)(?)
divide both sides by (x²+10x+16) or guess what ? is
(x-1)=?
width=x-1
B is answer
or you could have trial and erroed it, since you know they multiply to get the volume