Question

[4x+3]-2=5

Answer 1

Are those brackets or absolute value signs?

Answer 2

absolute values

Answer 3

Ok then, so do you know what the first step is?

Answer 4

Well its something like add the 2 to the other side of the equation then I get lost.

Answer 5

ok then, so then you have [4x+3] = 7

Answer 6

yes but I dont know what to do after

Answer 7

what im really confused by is the extraneous solution part

Answer 8

so, the absolute value of 4 times what plus 3 = 7

Answer 9

4X1=3=7?

Answer 10

http://www.icoachmath.com/math_dictionary/Extraneous_Solution.html this may help with the extranous solution part

Answer 11

K THANKS

Answer 12

Please press best response next to my answer if you think I was helpful :)

Answer 13

|4x+3| = 7

can be broken into two equations
1) 4x+3= 7
2) -(4x+3)= 7

solve both equations
for 1) add -3 to both sides
4x +3 - 3 = 7 -3
4x = 4
divide both sides by 4: x=1

can you solve the 2nd equation?

Answer 14

the first step for equation 2) is "distribute" the minus one: multiply -1 times everything inside the parens