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а) -2,4 х =4,8;
б) -х = -3,5;
в) 0,14 х = -0,077;
г) -8,5 :х =-1,7;
ґ) х(-5/9) =20/63);
д) - (8/9):х = 4.
а) -2,4 х =4,8;
б) -х = -3,5;
в) 0,14 х = -0,077;
г) -8,5 :х =-1,7;
ґ) х(-5/9) =20/63);
д) - (8/9):х = 4.
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Answers & Comments
[tex] - 2.4x = 4.8 \\ x = 4.8 \div ( - 2.4) \\ x = - 2[/tex]
[tex] - x = - 3.5 \\ x = 3.5[/tex]
[tex]0.14x = - 0.077 \\ x = - 0.077 \div 0.14 \\ x = - \frac{77 \times 100}{1000 \times 14} \\ x = - \frac{11}{20} \\ x = - 0.55[/tex]
[tex] - 8.5 \div x = - 1.7 \\ x = - 8.5 \div ( - 1.7) \\ x = 5[/tex]
[tex]x \times ( - \frac{5}{9} ) = \frac{20}{63} \\ x = \frac{20}{63} \div ( - \frac{5}{9} ) \\ x = - \frac{20 \times 9}{63 \times 5} \\ x = - \frac{4}{7} [/tex]
[tex] - \frac{8}{9} \div x = 4 \\ x = - \frac{8}{9} \div 4 \\ x = - \frac{8}{9 \times 4} \\ x = - \frac{2}{9} [/tex]