219-7.(x+1)=100
=> 7.(x+1)=219-100
=> 7.(x+1)=119
=> x+1=17
=> x=16
219 - 7 (x+1) = 100
7 (x+1) = 219 - 100
7 (x+1) = 119
x+1 = 119 : 7
x+1 = 17
x = 17 -1
x = 16
tik mik nha!
219 - 7 ( x + 1 ) = 100
7 ( x + 1 ) = 219 - 100
7 ( x + 1 ) = 119
x + 1 = 119 : 7
x + 1 = 17
x = 17 - 1
x = 16
Tick tớ nhé bạn !
219 - 7 (x+1) = 100
7 ( x + 1 ) = 219 - 100
7 ( x + 1 ) = 119
x + 1 = 119 : 7
x + 1 = 17
x = 17 - 1
x = 16
