Question

me ajudem porfavor nessa equaçao 6.[4z+2]+7 . [-5z+ 3 }=60

Answer 1

6 × (4z+2) +7 × (-5z+ 3) = 66
24z + 12 -35z + 21 = 66
24z - 35z = 66 - 12 - 21
-11z = 33 × (-1)
11z = -33
z = $\frac{-33}{11}$
z = 3