Question

3x+x-120=4

Answer 1

\(3x+x-120=4\)

\(3x+x=4+120\)

\(3x+x=124\)

\(124=3x+x\)

\(124=4x\)

\(=124:4\)

\(=31\)

Answer 2

3x+x-120=4

\(\Rightarrow\)4x-120=4

\(\Rightarrow\)4x=4+120

\(\Rightarrow\)4x=124

\(\Rightarrow\)x=124:4

\(\Rightarrow\)x=31

Answer 3

3x+x-120=4

=>4x-120=4

=>4x=4+120

=>4x=124

=>x=124:4

=>x=31