Question

PLEASE HELP! Solution of 2 [7x-4] +3=51?

Answer 1

When trying to isolate x, what is the first step possible?

Answer 2

idk im terrible at this stuff :/

Answer 3

2(7x-4)+3 = 51
14x - 8 + 3 = 51
14x -5 = 51
14x = 56
x = 4

Answer 4

Why did you use [ ] instead of ( )? Were you trying to indicate Absolute Values?

Answer 5

yes!!!

Answer 6

help please?

Answer 7

2[7x-4] = 48
[7x-4] = 24
7x-4 = -24 OR 7x-4 = 24
7x = -20 OR 7x = 20
x = -20/7 OR 7x = 20/7

Answer 8

sorry, the second part should be OR 7x = 28 -> x=4