x +100 +1=107
x +100=107-1
x +100=106
x=106-100
x=6
k nhé
x + 100 + 1 = 1 + 101 + 5
x + 101 = 107
x = 107 - 101
x = 6
ai tk mk mk tk lại
x + 100 + 1 = 1 + 101 + 5
x + 100 +1 = 107
x + 100 = 107 - 1
x + 100 = 106
x = 106 - 100
x = 6
x+100+1=1+101+5
x+101=102+5
x+101=107
x=107-101
x=6