Question

решите уравнение 9t + 4t - 286=0 14x+9x+88=272 25x-16x+54=162

Answer 1

9t×4t=286
13t=286
t=286÷13=22

14x+9x=272-88
23x=184
x=184÷23=8

25x-16x=162-54
9x=108
x=108÷9=12