jxniferr jxniferr
  • 23-08-2017
  • Mathematics
contestada

How to find the solution of |a-4|=3a-6

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 23-08-2017
for
|a|=b, solve for
a=b and a=-b

so

|a-4|=3a-6
solve
a-4=3a-6 and a-4=-(3a-6)

first one
a-4=3a-6
minus a from both sides
-4=2a-6
add 6 to both sides
2=2a
divide by 2
1=a

other

a-4=-(3a-6)
a-4=-3a+6
add 3a both sides
4a-4=6
add 4 to both sides
4a=10
divide by 4
a=10/4
a=5/2


a=5/2 and 1
Answer Link

Otras preguntas

Help Me??????????????????
A cookie recipe states for every 3 cups of flour, 1 1/2 teaspoons of vanilla are needed. How many teaspoons are needed for 5 cups of flour?
How to solve this question
Some athletes have as little as 3.0% body fat. If such a person has a body mass of 67 kg , how many pounds of body fat does that person have?
What document did North Carolina sign to declare freedom from England?
What is the Taliban's basic belief?
How did germany pay reparations after world war i?
Solve. −1.5x−3.1<5.5 Drag and drop a number or symbol into each box to show the solution. <>−5.73 ¯​2.93 ¯​5.73 ¯12.9
an airplane travels 4000m in 16 seconds on a heading of 35 ,what is the velocity?
The radian measure equivalent to -45º is _____.