Rozwiąż równania i sprawdź! Proszę o obliczenia
a)
-5x + 4 = x - 8
b)
-2x - 7= 2x - 7
c)
-7x + 5 = 11x + 41
d)
36x - 14= 14x - 56
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a)
-5x + 4 = x - 8
-5x+x=-8-4
-4x=-12 I:(-4)
x=3
b)
-2x - 7= 2x - 7
-2x-2x=-7+7
0=0
c)
-7x + 5 = 11x + 41
-7x-11x=41-5
-18x=36 I:(-18)
x=-2
d)
36x - 14= 14x - 56
36x-14x=-56+14
22x=-42 I:22
x=-42/22=-21/11=-1 i 10/11