Question

решите уравнения 5t+30-2t=42 и еще 36*(x-3)=10-2*(x+2)

Answer 1

5t-2t=42-30. 3t=12. t=4

Answer 2

36х - 36×3 = 10 - 2х - 4
36х - 108 = 6 - 2х
36х + 2х = 6 + 108
38х = 114
х= 114÷38
х = 3