Question

9,14*Z-(3,78*Z+2,87*Z)=12,45

КАК РЕШИТЬ ?

Answer 1

9.14z-6.65z=12.45
2.49z=12.45
z=5

Answer 2

9,14z - 3,78z - 2,87z = 12,45
2,49z = 12,45
z = 5