sofiaruizcastro08 sofiaruizcastro08
  • 01-10-2021
  • Mathematics
contestada

Thirty decreased by three times a number is six less than
three times the number. What is the number?

Respuesta :

crissz67
crissz67 crissz67
  • 01-10-2021

Answer:

12

Step-by-step explanation:

let the number be a

30-3a= -6

collect the like terms

30+6=3a

3a=36

a=12

The number is 12

Answer Link

Otras preguntas

Explain why the railroads were not built in a straight line from east to west.
If the angles of a triangle are in ratio 2:3:7 find the measure of all the angles of the triangle
What is bigger fraction, 5/6 or 6/7
The distance of a wave crest from its resting. position is its. out of A. Wavelength B. Amplitude C. Height
y varies directly as x. if x=5 when y=12 find x when y=30
Predict what happens when zinc is added to water
the length of a rectangle is 3 feet less than twice the width of the rectangle. if the perimeter of the rectangle is 324 feet, find the width and the length?
What is 60 divided by 100 and why? ( I got 0.6 but I'm not sure ) plz hurry
Substitution how do u do it??
y varies directly as x. if x=5 when y=12 find x when y=30