oblystonegegick
oblystonegegick oblystonegegick
  • 20-02-2018
  • Mathematics
contestada

What number does x stand for in this equation?

-7x + 6=27

Respuesta :

naomi479xx
naomi479xx naomi479xx
  • 20-02-2018
⓵ You need to solve the left side first in order to isolate the × and find it’s value :

-7× + 6 = 27
-6 -6
↓

-7× = 21
÷-7 ÷-7

↓

× = -3

If you find it too difficult to divide a number by a negative, just divide 21 by 7 and always remember that when dividing, when the signs are different the answer is negative. So knowing that you could just divide 21 by 7, which is 3, and add a negative sign in front!


I hope this helped, if there’s anything let me know! ☻
Answer Link

Otras preguntas

f(x)=11x-5, then f^-1(x)=
_____ suggests that psychological disorders are the result of irrational and self-defeating beliefs.
The two major divisions of the nervous system are the central and the ________ nervous systems.
What is 10 inches wide, 10 inches long by 7 cm deep
Is it illegal to put stuff on train tracks?
A patient presents in the emergency room (er) complaining of right lower quadrant pain. this finding is most indicative of:
The current (2015) population of Eugene is approximately 155,000 people. a) If the population growth rate remains at 4% per year, approximately when will the c
Fitness that improves your ability to learn skills is called skill-_______________ fitness.
What are the amplitude, period, and midline of f(x) = 3 cos(4x − π) + 2?
Find the value of x or y so that the line through the points has the given slope. (17,9) and (2,y); slope: -1/3