Question

589. Решите уравнения​

Answer 1

1)4x-4/2=0

4x-2=0

0+2=4x

2=4x

x=2/4

x=1/2

2)8x-24/14=0

8x-12/7=0

0+12/7=8x

12/7=8x

x=12/7/8

x=96/7

3)2/3x-1 3/4×2/3=0

2/3x-7/4×2/3=0

2/3x-14/12=0

2/3x-7/6=0

0+7/6=2/3x

7/6=2/3x

x=7/6:2/3

x=21/12

4)4/5x-2 1/4×4/5=0

4/5x-9/4×4/5=0

4/5x-36/20=0

4/5x-9/5=0

4/5x-0=9/5

4/5x=9/5

9/5:4/5=x

45/20=x

9/4=x

5)12(x-33/12)=0

12x-12×33/12=0

12x-33=0

0+33=12x

33=12x

x=33/12

x=2 9/12=2 3/4

6)9(x-2)=0

9x-18=0

0+18=9x

18=9x

x=18:9

x=2