Solve the following inequality. 2 (z + 1) - 4 (z - 4) ≤ 2 (z + 5)

Basically what you would do is 2z+2-4z+16< 2z+10. next thing you would do is combine like terms to get. - 2z+18<2z+10. then you would combine like terms to get - 4z<-8. then you divide by 4 to get z_<-2

Do you need the graph? or the value of each variables?