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

Which number line represents the solution set for the inequality-1/2x>4
Have you every thought of setting up, delivering your quote, and defending your quotes like a sandwich?
Which of the following is NOT a key contribution of feminism?   The contribution of women to IR beyond the “high politics” of diplomacy and military strategy
How to find the gradient and where the line crosses the y axis
3. Find the area of the triangle. A =_ O O 9 in² in2 13 금 1 O 4½ in 3 38 in 23 2 in
A rectangle has an area of 40 square feet. Select all the possible dimensions of the rectangle D 10 in., 30 in. A 4 ft, 10 ft B 20 ft, 20 ft C5 ft, 8 ft E 1 in
The helps identify the field. A.primary key B. field name C. data type D.none of the above
Factor. X squared plus 8x plus 15
Sarina has thrown cubical dice 2 times. write the probability of getting 5 in first throw and 4 in second throw.​
A building contractor is to dig a foundation 42 feet​ long, 18 feet​ wide, and 3 feet deep. The contractor pays ​$20 per load for trucks to remove the dirt. Eac