" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x-1-x+3=3
x=3-3+1
x=1
b)3(1-x)-(1-2x)=9
3-3x-1+2x=9
-x=9-3+1
-x=7 /× -1
x=-7
c)0,5(2-4x)=3-x
1-2x=3-x
-2x+x=3-1
-x=2 /×-1
x=-2
d)8/9k+1/3=3
8/9k=3-1/3
8/9k=8/3 /×9
8k=24 /÷8
k=3
e)-3/4-1/4x=2 i 1/4
-1/4x=3/4 + 2 i 1/4
-1/4x=3 /×(-4)
x=-12
f) 1/4x+2=1/2x-1
1/4x-1/2x=-1-2
1/4x-2/4x=-3
-1/4x=-3 /×(-4)
x=12
g)3(x+1)=2x
3x+3=2x
3x-2x=-3
x=-3
h)2(x+4)-6=3(x-2)+7x
2x+8-6=3x-6+7x
2x-10x=-2-6
-8x=-8 /×-1
x=8
i)5(z-2)=7(1-z)
5z-10=7-z
5z+z=7+10
6z=17 /÷6
z=17/6
z= 2 i 5/6
j)3(y+1)+6y=-2(y+1)+8
3y+3+6y=-2y-2+8
9y+2y=6-3
11y=3 /÷11
y=3/11
k)2/3-3/4x=-1/3
-3/4x=-1/3+2/3
-3/4x=1/3 /×4
-3x=4/3 /÷(-3)
x=4/3×(-1/3)
x=-4/9
l)1/2x+4=-6
1/2x=-6-4
1/2x=-10 /×2
x=-20
ł) 2/3(6x-9)=12
4x-6=12
4x=12+6
4x=18 /÷4
x=4,5
m)x+3=2/3
x=2/3-3
x=-2 i 1/3