Решите уравнениеa)15х=0,15б)3,08:y=4в)3a+8a=1,87г)7z-3z=5,12д)2t+5t+3,18=25,3е)8р-2р-14,21=75,19ж)295,1:(n-3)=13з)34*(m+1,2)=61,2и)15*(k-0,2)=21

а) 15x=0.15 x=0.15/15=0.01  б)3.08:y=4 3.08:4=y y=0.77 в)3a+8a=1.87 11a=1.87 a=1.87/11=0.17 г)7z-3z=5.12 4z=5.12 z=5.12/4=1.28 д) 2t+5t+3.18=25.3 7t=25.3-3.18 7t=22.12 t=22.12/7=3.16 e)8p-2p-14.21=75.19 6p=89.4 p=89.4/6=14.9 ж)295.1/(n-3)=13 295.1=13(n-3) 295.1=13n-39 13n=334.1 n=334.1/13=25.7 з)34*(m+1.2)=61.2 34m+40.8=61.2 34m=20.4 m=20.4/34=0.6 и)15*(k-0.2)=21 15k-3=21 15k=24 k=24/15=1.6 

а)15х=0,15                     г)7z-3z=5,12     х=0,15:15                       4z=5,12    х=0,01                          z=5,12:4                                           z=1,28 б)3,08:у=4                            у=3,08:4                       д)2t+5t+3,18=25,3    у=0,77                             7t+3,18=25,3                                           7t=25,3-3,18 в)3а+8а=1,87                      7t=22,12       11а=1,87                          t=22,12:7    а=1,87:11                         t=3,16    а=0,17                                        е)8р-2р-14,21=75,19                                            6р=75,19+14,21                                           6р=89,4                                           р=89,4:6                                           р=14,9   ж) 295,1:(n-3)=13 295,1=13(n-3) 295,1=13n-39 13n=334,1 n=334,1:13=25,7   з)34*(m+1,2)=61,2    m+1,2=61,2:34    m+1,2=1,8    m=1,8-1,2    m=0,6   и)15*(k-0,2)=21    k-0,2=21:15    k-0,2=1,4    k=1,4+0,2    k=1,6