soccerjulie soccerjulie

02-11-2020
Mathematics

contestada

Three times a number minus ten is equal to the sum of twice the same number and five.
3x-10=2x+5
A. -5
B. -1
C. 3
D. 15

Respuesta :

arodri04 arodri04

02-11-2020

Answer:

D. 15

Step-by-step explanation:

3x-10=2x+5

to solve subtract 2x from both sides

(3x - 2x) - 10 = 2x + 5 - 2x

add 10 to both sides

x -10 + 10 = 5 + 10

x = 15

Answer Link

Otras preguntas

What is one way scientists are able to study operons in organisms?

Select all that apply. What contributes to the humor in an anecdote? (Multiple Choice) A. The circumstances may be exaggerated. B. It connects in some way to ou

Mr. Brown just fenced in an area for his dog. He used exactly 40 feet of fencing for the rectangular shaped enclosure. If the length of the enclosure is 14 feet

In Roman society, the head of the family was typically A) the family's oldest living male. B) the family's oldest living female. C) the man whose age was n

fundamental porter perey

Which statement is true about exercise and health?Select one of the options below as your answer: A. As long as you eat right and exercise, you will not develop

Which best contrasts flocking and schooling?

If vince charged $200 on his credit card with 18% apr and he paid his balance in full within the grace period, how much is the finance change?

What enable mobility in Nosedive

5. According to Carnegie’s beliefs, what insures the survival of the fittest in every department and is essential to the future progress of the man?