Question

Determină numarul intreg x, stiind ca:
b) x•y- x•z=-156 şi y-z=-17
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Answer 1

x × y - x × z = - 156

y - z = - 17

x × ( y - z ) = - 156

x × ( - 17 ) = - 156

x = ( - 156 ) : ( - 17 )

x = 9, 1764