71 - (33 + x) = 26
33 + x = 71 - 26
33 + x = 45
x = 45 - 33
x= 12
71 - (33 + x) = 26
71 - 33 - x = 26
38 - x = 26
x = 38 - 26
x = 12
71 - (33 + x) = 26
33 + x = 71 - 26
33 + x = 45
x = 45 - 33
x= 12
71 – (33 + x ) = 26
33 + x = 71 - 26
33 + x = 45
x = 45 - 33
x = 12
\(\text{71 - (33 + x) = 26 }\)
71 - 33 - x = 26
38 - x = 26
x = 38 - 26
x = 12
71 - (33 + x) = 26
33+x = 71 -26
33+ x = 45
x = 45 - 33
x = 12
vậy x = 12
71 - (33 + x) = 26
33 + x = 71 - 26
33 + x = 45
x = 45 - 33
x= 12
71 - (33 + x) = 26
33 + x = 71 - 26
33 + x = 45
x = 45 - 33
x= 12