9/2=-10z-1/2(-10z+1)need it solved
9/2= -10z-1/2(-10z+1)multiply all terms by 2 to eliminate the fraction9=-20z-(-10z+1)remove ( ) distribute -19=-20z+ 10z-1combine like terms9= -10z -1add 1 to both sides10=-10zdivide by -10-1=z
hope this helps
