40-2 (7-3t)=30-3(3-7)+5(t+1)
40-2 (7-3t)=30-3(3-7)+5(t+1)
40-14+6t=?
26+6t=
40-14+6t=?
26+6t=
Odpovědi
Diskuze
40-14+6t=30-9+21+5t+5
40-14-30+9-21-5=5t-6t
-21=-t
21=t
t=21
====
40-14+6t=30-9+21+5t+5
40-14-30+9-21-5=5t-6t
-21=-t
21=t
t=21
====