-27 = -3p + 15 - 3p
Combine like terms.
-3p -3p = (-3-3)p = -6p
-27 = -6p + 15
Subtract 15 from each side to get the variable term on its own.
-27 - 15 = -6p + 15 - 15
-42 = -6p
Divide each side by -6 to find p.
p = -42 ÷ -6 = 7
4ft divided by 2/3ft
4/1 divided by 2/3
4/1 times 3/2 is 12/2 or 6 pieces, 0 remaining.
Answer:
x=3, -1/7
Step-by-step explanation:
7x^2-20x-3=0
Factor.
(x-3)(7x+1)=0
x-3=0 ⇒ x=3
7x+1=0 ⇒7x=-1 ⇒x= -1/7
4b²+20b+25=0
Divide everything by 4
b²+5b+ 6.25=0
use the quadratic formula
x= (-b+ or - √b²-4ac) /2a
x= (-5 + or - √5²-4*1*6.25) /2(1)
x= -5/2 so
in this case, b= -5/2
