Odpowiedź:
A) 4a-8=32
4a=32+8
4a=40/ :4
a=10
B) 3x-8=x+4
3x-x=4+8
2x=12/:2
x=6
C) 2(3x+1) =4x+18
6x+2=4x+18
6x-4x=18-2
2x=16/:2
x=8
powinno być dobrze
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Odpowiedź:
A) 4a-8=32
4a=32+8
4a=40/ :4
a=10
B) 3x-8=x+4
3x-x=4+8
2x=12/:2
x=6
C) 2(3x+1) =4x+18
6x+2=4x+18
6x-4x=18-2
2x=16/:2
x=8
powinno być dobrze
4a=32+8
4a=40/4
a=10