Question

3(1,2х+7у)+3х•0.1
при х=1 при у=0.1

Answer 1

3(1,2х+7у)+3х*0.1 = 3,6х+21у+0,3х= 3,9х+21у

3,9*1+21*0,1=3,9+2,1=6
Ответ: 6