Question

cho xthuoc Z biet

(-12)² .x= 56+10.13.x

Answer 1

=>144x=56+130x

=>144x-130x=56

=>14x=56

=>x=56:14

=>x=4

Answer 2

(-12)².x=56+10.13.x

144.x=56+130.x

14.x=56

x=56:14

x=4

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