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Автор - Cstyfbd8g

Решите пж уравнения номер 94

Ответ

Автор - JenniBelli

Ответ:

1) 15 2)37 3)6 4)1.1

Объяснение:

1)frac{4x-51}{3} -frac{17-3x}{4} = frac{x+5}{2} /*12\ 4(4x-51)-3(17-3x)=6(x+5)\ 16x-204-51+9x=6x+30\ 25x-6x=30+255\ 19x=285\ x=15

2)frac{3x-7}{4} -frac{9x+11}{8} =frac{3-x}{2} /*8\ 2(3x-7)-(9x+11)=4(3-x)\ 6x-14-9x-11=12-4x\ -3x-25=12-4x\ -3x+4x=12+25\ x=37

3)frac{9x-5}{2} -frac{3+5x}{3} -frac{8x-2}{4} =2 /*12\ 6(9x-5)-4(3+5x)-3(8x-2)=24\ 54x-30-12-20x-24x+6=24\ 10x-36=24\ 10x=24+36\ 10x=60\ x=6

4)frac{4x-3}{2}-frac{5-2x}{3}=frac{3x-4}{3} /*6\ 3(4x-3)-2(5-2x)=2(3x-4)\ 12x-9-10+4x=6x-8\ 16x-6x=-8+19\ 10x=11\ x=1,1

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