Question

how do i do this??

9x-4=7-2x

Answer 1

9x-4=7-2x        /+2x
11x-4=7          /+4
11x=11      /:11
x=1

Answer 2

$9x-4=7-2x\\ 9x+2x=7+4\\ 11x=11\\ x=\frac { 11 }{ 11 } \\ x=1$