bianca1324
bianca1324 bianca1324
  • 02-11-2016
  • Mathematics
contestada

3(x+7)-12=4(2x-7)

How do you do this?!?!

Respuesta :

MohamedSharif
MohamedSharif MohamedSharif
  • 13-11-2016
3x+21-12=8x-28
collect the like terms
3x-8x=-28(21-12=9)
-5x=-28-9
-5x=-37
x=7.4
Answer Link

Otras preguntas

J={x|x is an integer and x>-1}
Which of the following is formed at the mouth of a river as sediment is carried to the ocean? A. a lake B. an island C. a delta D. a bay
What is the term for all of a language's morphemes and their meanings?
What would your parent/guardian want you to do if drunk this is a drivers ED question
A box has 8 beads of the same size, but all are different colors. Tamy draws a bead randomly from the box, notes its color, and then puts the bead back in the b
How would you alert the document author if you found a critical error or discrepancy in a dictation?
Business application software programs make it possible to:
A class is collecting to recycle.Their goal is to collect 200 ounces of cans the first day3 students each bring in 12.7 ounces of cans,and 4 students each bring
Choose a sport you like, such as football or gymnastics. Describe how a high level of flexibility would affect your performance in that sport.
Take two glasses, fill one with water and leave the other empty. Place them side by side. Fold a paper towel lengthwise and put one end into the water in the gl