x + 98 = 100
x = 100 - 98
x = 2
1082 - x = 756
x = 1082 - 756
x = 326
x + 98 = 100
x = 100 - 98
x = 2
------
1082 - x = 756
x = 1082 - 756
x = 326
x = 100 - 98
x = 2
x = 1082 -786
x = 296
a) x + 98 = 100
x = 100 - 98
x = 2
b) 1082 - x = 756
x = 1082 - 756
x = 326