Question

Tìm x, biết:

x + 19 = 88 + 12

Answer 1

    \(x+19=88+12\)

\(\Leftrightarrow x+19=100\)

\(\Leftrightarrow x=100-19\)

\(\Leftrightarrow x=81\)

Answer 2

x+19=88+12

x+19=100

x=100-19

x=81

Answer 3

x + 19 = 88 + 12

x  + 19 = 100

x = 100 - 19

x = 81

Answer 4

x + 19 = 88 + 12

x + 19 = 100

     x = 100 - 19

     x = 81