Question

решите уравнения 0.2t + 1,7t - 0.54=0.22 и 5.6z - 2z -0.7z +2.65=7

 

 

Answer 1

0,2t+1,7t=0,22+0,54,
1,9t=0,76,
t=0,4

5,6z-2z-0,7z=7-2,65,
2,9z=4,35,
z=1,5