Question

решить уравнения : x-(18+24)=29,    (65-39)+b=81

Answer 1

x-(18+24)=29
x-42=29
x=42+29
x=71


(65-39)+b=81
26+b=81
b=81-26
b=55

Answer 2

x-42=29
x=42+29
x=71

(65-39)+b=81
26+b=81
b=81-26
b=55