Rozwiąż równania :
c ) x+2 / 9 + x-1/3 = 1
e ) 3x-5/2-5x-1/10=0
g ) 2x-1 /5-x-2/2=0,7x
x+2 / 9 + x-1/3 = 1 |*9
9x+2+9x-3=9
18x=10 |:18
x=10/18
x= 5/9
3x-5/2-5x-1/10=0 |*10
30x-25-50x-1=0
-20x=26 |:(-20)
x= -26/20
x= - 1,3
2x-1 /5-x-2/2=0,7x
2x- 1/5-x-1=7/10x |*10
20x-2-10x-10=7x
20x-10x-7x=2+10
3x=12 |:3
x=4
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x+2 / 9 + x-1/3 = 1 |*9
9x+2+9x-3=9
18x=10 |:18
x=10/18
x= 5/9
3x-5/2-5x-1/10=0 |*10
30x-25-50x-1=0
-20x=26 |:(-20)
x= -26/20
x= - 1,3
2x-1 /5-x-2/2=0,7x
2x- 1/5-x-1=7/10x |*10
20x-2-10x-10=7x
20x-10x-7x=2+10
3x=12 |:3
x=4