• Үй тапсырмасы мен өткен тақырыпты еске түсіру
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  • 1) (3х + у)- (-х -4у)
    4х + 5у
  • 2) (х + 6у) - (8х - 7у)
    -7х+13у
  • 3) (m+n ) - (m - n)
    2n
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