-10(2k-2)=4(17-39) k= hmmm dont know need help

-10(2k-2)=4(17-39) k    simplify

-20k + 20   =  4 (-22) k    divide through by 4

-5k + 5   =  -22k       add 5k to both sides

5 = -17k       divide both sides by -17

-5 / 17   = k