October 2018 2 26 Report

Mam teraz rozwiązywanie równań .. Mógłby mi ktoś rozwiązać te przykłady ??
a) x + 5 =10
b) 2x + 3 = 15
c) 2(x+3)=10
d) 3(x-1)+2=8
Prosze o rozpisanie tego .. jesli ktoś nie wie to mogę dać przykład :
Np: -3x=2-10
-3x-2x=-10
-5x= -10 /: (-5)
x= \frac{-10}{-5}
x=2
Będe bardzo wdzięczna , ponieważ niezbyt to roumiem a potrzebne jest mi na jutro ;( Z góry dziękuje !


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