Question

[4x-21]=2x-3

Answer 1

little diffrent

Answer 2

Bring the 2x to the other side by substracting it
4x - 2x - 21 = -3
Bring -21 to the other side by adding it
4x - 2x = +21 - 3
Simplify
2x = 18
x = 9

Answer 3

2x = +18
x = 9

Answer 4

keep bringing it down

Answer 5

is this absolute value? what is does the [ ] mean?

Answer 6

I think she means ( )

Answer 7

in math we seldom bring things. we usually add, subtract, multiply or divide. sometimes we bring apples to our teachers

Answer 8

steps are :
add 21 to both sides
subtract 2x from both sides
divide by 2