Question

Rozwiąż równanie .

a) 2(2m-3)+2m=5(3-m)+1

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b) 1,5-1,9x=0,5(x+3)-0,3(x+5)

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c) 5/6(y-4)-1/3=1/4(y+5)+1/2

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Answer 1

a)4m-6+2m=15-5m+1

11m=22

m=2

b)1,5-1,9x=0,5x+1,5-0,3x-1,5

2,1x=1,5

x=7/5

c)5/6y-3i1/3-1/3=1/4y+5/4+1/2

 

Answer 2

2(2m-3)+2m=5(3-m)+1

4m-6+2m=15-5m+1

6m-6=16-5m

6m+5m=16+6

11m=22

m=2

 

1,5-1,9x=0,5(x+3)-0,3(x+5)

1,5-1,9x=0,5x=1,5-0,3x-1,5

-1,9x-0,5x+0,3x=1,5-1,5-1,5

-2,1x=-1,5

x=1,5/2,1

 

 

5/6(y-4)-1/3=1/4(y+5)+1/2

5/6y-20/6-1/3=1/4y+5/4+1/2

5/6y-20/6-2/6=1/4y+5/4+2/4

5/6y-22/6=1/4y+7/4

10/12y-3/12y=21/12+44/12

7/12y=65/12    *12

7y=65

y=65/7

y=9 2/7