skullbook570
skullbook570 skullbook570
  • 02-11-2018
  • Mathematics
contestada

If 3x+7=x-1, then does x = -4?

Respuesta :

sid071
sid071 sid071
  • 02-11-2018

Hey there!!

To check whether x= -4, let's solve the equation.

Given:

3x+7 = x-1

Subtracting 2x on both sides:

2x + 7 = -1

Subtracting 7 on both sides:

2x = -1-7

2x = -8

Dividing 2 on both sides:

x = -8/2

x = -4

Yes, x is -4.

Hope it helps!

Answer Link
seankeenan2 seankeenan2
  • 02-11-2018

Answer:

Yes

Step-by-step explanation:

You multiply 3 by -4 to get -12, then add 7 to make the left side of the equation -5. On the right side, all you have to do is do -4 minus 1, which is -5. That being said, yes x=-4

Answer Link

Otras preguntas

excel recognizes the following as text: 401ax21, 921-231, 619 321, 883xty. (points : 2) true false
Christianity had its beginnings in which roman province? 1) galatia 2) thrace 3) numidia 4) judea
Who would pay the most as a percentage of income under a progressive tax? Lawyer earning $110,000 per year Teacher earning $45,000 per year CEO earning $2.5
648 divided by 18 partial quotients
What is the expanded form to write the prime factorization of 630
What are the answers to these questions: 1) 75% of 76? 2) A quarter of 5056? 3) One third of 3699? 4) 75% of 60?
julie goes to the park across the street from her house several times a day and jogs a total of six miles every day. she jogs three-fourth of a mile at a time.
use two unit multipliers to convert 1250 square inches to square feet
which number rounds to 340 when rounded to the nearest ten?
what is the GCF of 4 and 7