a)x/4-1=6 / · 4 x/4 ·4-1·4=6·4vx-4=36x=4+36x=40
b)3x/4-7=14 / ·43x/4·4-7·4=14·43x=-28=563x=28+56x=84/3x=28c)7-x/5=0 /·57·5-x/5·5=0·535-x=0-x=-35 // -1x=35d)1/6x+2=13x=13-1/6-2x=11-1/6x=66/6 - 1/6x=65/6 x=10 5/6e)2/3 x -1,2=1,8 x=2/3 +1,2+1,8
x=2/3 + 3 x=11/3x=3 2/3f)3,5 x +2,4 = 6 x=6-3,5-2,4
x=0,1g)7,5-0,2 x =4,5 x=4,5-7,5+0,2 -x=-1 // -1x=1 h)5-3 x / 4 = 2 /·4 5·4-3x/4·4=2·4 20-3x=8 3x=8-203x=-12 // 3 x=-4Jest dobrze,bo też to miałam.; )
a)x=28
b)x=28
c)x=35
d)x=66
e)x=4,5
f)x=6
g)x=15
h)x=-4
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a)x/4-1=6 / · 4
x/4 ·4-1·4=6·4v
x-4=36
x=4+36
x=40
b)3x/4-7=14 / ·4
3x/4·4-7·4=14·4
3x=-28=56
3x=28+56
x=84/3
x=28
c)7-x/5=0 /·5
7·5-x/5·5=0·5
35-x=0
-x=-35 // -1
x=35
d)1/6x+2=13
x=13-1/6-2
x=11-1/6
x=66/6 - 1/6
x=65/6
x=10 5/6
e)2/3 x -1,2=1,8
x=2/3 +1,2+1,8
x=2/3 + 3
x=11/3
x=3 2/3
f)3,5 x +2,4 = 6
x=6-3,5-2,4
x=0,1
g)7,5-0,2 x =4,5
x=4,5-7,5+0,2
-x=-1 // -1
x=1
h)5-3 x / 4 = 2 /·4
5·4-3x/4·4=2·4
20-3x=8
3x=8-20
3x=-12 // 3
x=-4
Jest dobrze,bo też to miałam.; )
a)x=28
b)x=28
c)x=35
d)x=66
e)x=4,5
f)x=6
g)x=15
h)x=-4