6(x+4)=42
6x+24=42
6x=18
x=3
10(x-2)=30
10x-20=30
10x=50
x=5
2(2x-3)=6
4x-6=6
4x=12
(4 1/2x-3)*2=3(2+2x)
9x-6=6+6x
3x=12
x=4
x/4=5 /*4
x=20
2x/4=24
x/2=24 /*2
x=48
49x-66=32x+2
17x=68
45x-60=25x+28
20x=88
x=4 i 2\5
Rozwiązanie w załączniku
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6(x+4)=42
6x+24=42
6x=18
x=3
10(x-2)=30
10x-20=30
10x=50
x=5
2(2x-3)=6
4x-6=6
4x=12
x=3
(4 1/2x-3)*2=3(2+2x)
9x-6=6+6x
3x=12
x=4
x/4=5 /*4
x=20
2x/4=24
x/2=24 /*2
x=48
49x-66=32x+2
17x=68
x=4
45x-60=25x+28
20x=88
x=4 i 2\5
Rozwiązanie w załączniku