adrianaclaytonn adrianaclaytonn
  • 22-02-2017
  • Mathematics
contestada

how do i do this?? Can you please help ? :

how do i do this Can you please help class=

Respuesta :

Аноним Аноним
  • 22-02-2017
4. -3(b-4)=-2b
    -3b+12=-2b
    12=-2b+3b
    12=b

5. 7x+4/3=2x-1
   3(7x+4)=3(2x-1)
  21x+12=6x-3
  21x-6x=-3-12
  15x=-15
  x=-15/15
  x=-1

6. 4x+12=-2(x+3)
   4x+12=-2x-6
   4x+2x=-6-12
   6x=-18
   x=-18/6
  x=-3

7. 7-5x=10-(6x+7)
   7-5x=17-6x
   6x-5x=17-7
   x=10
  
Answer Link

Otras preguntas

Difference between phosphoester bond and phosphodiester bond
HEEEEEEELPPPPPP PLEAAAASEEEEE write a paragraph when you did something especially well. Describe what you did. Why do you think you did it well? How did you fee
what is 92 to the power of 3? please answer this!
please help fast! I have no idea what I'm supposed 2 do
What would surface currents look like if there were no continents?.
Lexi has 2 cans of tennis balls. There are 3 tennis balls in each can. she buys 2 more cans. how many tennis balls does she now have?
When the earth is moving away from the sun,what happens to the amounts of daily sunlight?
What is the justification for step 3 in the solution process? 0.8a − 0.1a = a − 2.5 Step 1: 0.7a = a − 2.5 Step 2: -0.3a = -2.5 Step 3: a = 8.3
with show work please. urgent
Milgram's study provides evidence that obedience to authority may be more common than most of us would like to believe. True False