Question

Решите уравнение:

а) 10 z+ 5,5 = 9,5; б) (42,5 -y): 6 =0,6.

Answer 1

а) 10z+5.5=9.5
10z=4
z=4/10
z=0.4
б)(42.5-y)/6=0.6
42.5-y=0.6*6
42.5-y=3.6
y=42.5-3.6
y=38.9