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x=2
b) -3x=7
x=-³/₇
c) 2x=⅕
x=¹/₁₀
d)1,2x=4,8
x=4
e)⅓ x=3
x=9
f)-⅓ x = -5
x=15
g)¾ x = - ⁴/₉
x=-¹⁶/₂₇
h)0,1x=-7
x=-70
i)-3x=2x-10
-5x=-10
x=2
j)2x-2=7-x
3x=9
x=3
k)10=4-2x
-2x=6
x=-3
l)-(2x-1)=4
-2x+1=4
-2x=3
x=-1½
m)2(x+1)=x
2x+2=x
x=-2
n)2t-(3t+1)=6
2t-3t-1=6
-t=7
t=-7
o)-(4+x)=2(3-x)
-4-x=6-2x
x=10
p)3(y+6)-y=2(y+9)
3y+18-y=2y+18
2y+18=2y+18
0=0
r)(x-7)-2(3x+5)=3
x-7-6x-10=3
-5x-17=3
-5x=20
x=-4
s)0,1x+0,2=-0,3
0,1x=-0,5
x=-5
t)0,25x+0,4=0,35
0,25x=0,75
x=3
u)1-0,2x=-0,3x
0,1x=-1
x=-10
w)0,01x-1=0,1x-0,1
0=0