219-7(x+1)=100
=> 7(x+1)=119
=> x+1 = 17
=> x=16
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219-7(x+1)=100
=> 7(x+1)=119
=> x+1 = 17
=> x=16
219 - 7 x ( X - 1) = 100
219-7(x+1)=100
219 - 7 (x+1) = 100
219 -7 (x+1)=100
219 - 7 (x + 1 ) =100
219-7(x+1) = 100
219-7*(x+1)=100
219 - 7 . ( x + 1 ) = 100
x = ?
tim x ; 219 - 7 ( x + 1 ) = 100