Решите уравнение: z:8.2=4.1; 18,63:(4,3+m)=2,3; (4,5+x)*3,1=28,52; 6,32y-4,67y+2,55y=25,2
1. 2. 3. 4.
1)Z=8.2*4.1=33.62. 2) 18,63:(4,3+m)=2.3; 4.3+m=2.3*18.63; 4.3+m=42.849; m=42.849-4,3; m=38.549. 3) (4, 5+х)*3,1=28,52; 13,95+3,1х=28,52; 3,1х=28,52-13,95; 3,1х=14,57; х=14,57:3,1; х=4,7. 4) 6,32у-4,67у+2,55у=25,2; 4,2у=25,2; у=25,2:4,2; у=6.