Question

The sum of three consecutive multiples of three is 90.Find the number​

Answer 1

Answer:

let numbers be

x,x+3,and x+6

Step-by-step explanation:

so

x+x+3+x+6=90

3x+9=90

3x=90-9

x=81/3

x=27

so numbers are

27,30and 33

Answer 2

Answer:

27,30,33

Step-by-step explanation:

Let the first number be x.

The next number is x+3.

The next number is x+6.

x+(x+3)+(x+6)=90

x+x+3+x+6=90

combine terms

3x+9=90

Subtract 9 from both sides of the equation.

3x=81

Divide both sides of the equation by 3

x=27, x+3=30, x+6=33

Check 27+30+33=90