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

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