WYKONAJ RÓWNANIA:
1) 0=-8(x-3)+4(2x-6)
2) 2(7-3)=5-4(6-4)
3) 3-3(5y+2)=6(3y-7)
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0 = -8x + 24 + 8x - 24
0 = 0
Równanie tożsamościowe
x ∈ R
2) 2(7 - 3) = 5 - 4(6 - 4)
2 * 4 = 5 - 4 * 2
8 = 5 - 8
8 = -3
Równanie sprzeczne.
3) 3 - 3(5y + 2) = 6(3y - 7)
3 - 15y - 6 = 18y - 42
-15y - 18y = -42 + 6 - 3
-33y = -39
y = 39/33 = 13/11