pomocy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Rozwiąż równania i sprawdź:
a) 4x-8=-16
b) 3x+6=5x-9
c) -2(x-7)+3=-5x+4
prosze na jutro !!!
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a) 4x-8=-16
4x=-16+8
4x=-8 /:4
x=-2
b)3x+6=5x-9
3x-5x=-9-6
-2x=-15/ : (-2)
x=7,5
c)-2(x-7)+3=-5x+4
2x+14+3=-5x+4
2x+5x=4-14-3
7x=-21 /:7
x=-3
Powinno być dobrze ;) jak coś to pisz :D