Question

a) 3x + 27= 45

Answer 1

\(3x+27=45\)

\(3x=45-27=18\)

\(\Rightarrow x=6\)

Answer 2

x=6

Answer 3

\(3x+27=45\\ 3x=45-27\\ 3x=18\\ x=18:3\\ x=6\)

Answer 4

Answer 5

x=6 nhé