Rozwiąż równania ; (a) 2(x-8)= -7(x-1) (b) jedna szósta X -5=2x
2(x-8)= -7(x-1)
2x-16 = -7x+7
2x+7x = 7+16
9x = 23 /:9
x = 23/9
1/6x-5 = 2x
1/6x-2/1x = 5
1/6x-12/6x = 5
Rozwiąż równania ;
(a)
2x-16=-7x+7
9x=23 /:9
x=23/9
x=2 5/9
(b)
jedna szósta X -5=2x
1/6 * (-5)=2x
2x=-5/6 /:2
x=-5/6*1/2
x=-5/12
lub
1/6x-2x=5
-1 5/6x=5 /:(-1 5/6)
x=5* (-6/11)
x= - 30/11
x= - 2 8/11
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2(x-8)= -7(x-1)
2x-16 = -7x+7
2x+7x = 7+16
9x = 23 /:9
x = 23/9
1/6x-5 = 2x
1/6x-2/1x = 5
1/6x-12/6x = 5
Rozwiąż równania ;
(a)
2(x-8)= -7(x-1)
2x-16=-7x+7
9x=23 /:9
x=23/9
x=2 5/9
(b)
jedna szósta X -5=2x
1/6 * (-5)=2x
2x=-5/6 /:2
x=-5/6*1/2
x=-5/12
lub
1/6x-5 = 2x
1/6x-2x=5
-1 5/6x=5 /:(-1 5/6)
x=5* (-6/11)
x= - 30/11
x= - 2 8/11