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4x-x=54+54
3x=108 /:3
x=36
4x=20 /:4
x=5
1+2x+5*(41-1-x)=150
1+2x+5*(40-x)=150
1+2x+200-5x=150
2x-5x=150-1-200
-3x=-51 /:(-3)
x=17
2x+100=110
2x=110-100
2x=10 /:2
x=5
4x+1=3x+5
4x-3x=5-1
x=18
4*(4-1)=6*(x+1)
4x-4=6+6x
4x-6x=4+6
-2x=10 /:(-2)
x= -5
11-y=y+2y-5
11-y=3y-5
-y-3y=-11-5
-4y=-16 /:(-4)
y=4
5x+2=7-3x
5x+3=-2+7
8x=5 /:8
x=5/8
3(x-1)=0
3x-3=0
3x=0+3
3x=3 /:3
x=1
-6(x+1)=24
-6x-6=24
-6x=24+6
-6x=30 /:(-6)
x=-5
Mam nadzieję, że pomogłam :)