Răspuns :
( a-80)x2 = 32 +324
( a-80)x2 = 356
a-80= 356:2
a-80 = 178
a= 178+80
a=258
( a-80)x2 = 356
a-80= 356:2
a-80 = 178
a= 178+80
a=258
( a - 80 ) × 2 -324=32
( a - 80 ) x 2 = 32 + 324
( a - 80 ) x 2 = 356
a - 80 = 356 : 2
a - 80 = 178
a = 178 + 80
a = 258
( a - 80 ) x 2 = 32 + 324
( a - 80 ) x 2 = 356
a - 80 = 356 : 2
a - 80 = 178
a = 178 + 80
a = 258