mrbean1rowan
mrbean1rowan mrbean1rowan
  • 23-01-2017
  • Mathematics
contestada

Find the value of x in the equation 3(x + 2) = x.

get marked brainliest for the best explanation

Respuesta :

genna123
genna123 genna123
  • 23-01-2017
First number = x
Consecutive number = x+1
"squares differ by 31" means to square both numbers and subtract them:
(x+1)^2 - (x)^2 = 31
x^2+2x+1 - x^2 = 31
2x+1 = 31
2x = 30
x = 15 (first number) 
x+1 = 15+1 = 16 (consecutive number)
Answer Link

Otras preguntas

WHAT IS THE EQUATION OF THIS FUNCTION AFTER IT IS REFLECTED OVER THE X-AXIS
Helpppppppppppppppppppppp
The radius of a wheel is 9.0 cm, and the radius of the axle is 0.6 cm. If the effort force is 75 N and the resistance force is 900 N, what is the AMA? 5 8 12 15
I need help solving number 3. (A-E) please. Not sure how to even begin. Thank you
Four sisters bought a present for their mother. They received a 10% discount on the original price of the gift. After the discount was taken, each sister payed
What is a supernova? By nasa
Find an equation of the tangent line to the given curve at the specified point. y = 2x/ x + 2 , (2, 1)
Except for cases involving the president of the united states, the supreme court had the final say in all of the cases it hears true or false
¿Contará Miguel el dinero? No, no lo contará. No, no lo contaré. No, no lo contarás. No, no lo contaremos.
The South African economy can BEST be described as a