natashaartem
natashaartem natashaartem
  • 04-08-2018
  • Mathematics
contestada

Three times the sum of a number and -2 is -15. find the number

Respuesta :

Аноним Аноним
  • 04-08-2018

Hello!

Let's write this as an equation below.

3(x-2)=-15

First we undo the parentheses.

3x-6=-15

We add 6 to both sides.

3x= -9

We divide both sides by 3.

x= -3

Therefore, our number is -3.

I hope this helps!

Answer Link

Otras preguntas

Why did the Chinese peasants rebel against the manchus from 1850 to 1864?
How long does water evaporation take? What factors influence it?
which number is 100 less than 38 tens
13/20-3/10 estimate: closer to 1 or 0?
How many months is 0.75 of a year
15 times what equals 45
13/20-3/10 estimate: closer to 1 or 0?
On average Exante Express trains are 50km/hr faster than Paral passenger trains. A Paral passenger train requires 60% more time then Exante train to travel 1800
Lauren bought 20 ounces of sliced ham. she used 3/4 of the ham to make sandwiches for her friends and 1/5 of the ham in an omelet. how many ounces of ham were l
What is the biggest cause of extinction today? a. pollution b. exotic species c. global warming d. habitat loss