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a)2x-5=4x+17
-2x=22
x=-11
b)3x+34=-2x-11
5x=-45
x=-9
c)4x-5-7x=2-5x-23
-3x-5=-5x-21
2x=-16
x=-8
d)4x-5+2x=4-7x+31
6x-5=-7x+35
13x=40
x=3 i 1/13
e)3x-15>5x-33
-2x>-18
x<9
f)5x-7>8x+11
-3x>18
x<-6
g)6x+7-7x>2-4x-17
-x+7>-4x-15
3x>-22
x=7 i 1/3
h)-4x-11+3x<3-2x-24
-x-11<-2x-21
x<-10
2.Rozwiąż równania
a) (x+4)-(3-2x)=(3x+4)-(6+x)
x+4-3+2x=3x+4-6-x
3x+1=2x-2
x=-3
b) -(3-x)+(2x+2)=-(1-2x)+(2x-15)
-3+x+2x+2=-1+2x+2x-15
2x-1=4x-16
-2x=-15
x=7 i 1/2
3.Rozwiąż równania.
a)-3(x+2)-2(x+3)=-7
-3x-6-2x-6=-7
-5x-12=-7
-5x=5
x=-1
b)2(2x+5)-3(5+x)=4(x+3)+2(2x+2)
4x+10-15-3x=4x+12+4x+4
x-5=8x+16
-7x=21
x=-3
c) 4(2x-8)-6(x-4)=2
8x-32-6x+24=2
2x-8=2
2x=10
x=5
d) -3(x+2)+2(2x-3)=-7(3-x)+5(1-2x)
-3x-6+4x-6=-21+7x+5-10x
x-12=-3x-16
4x=-4
x=-1