dwa proste przykłądy.
rozwiąż równania:
a) ( - 0,5x + 1) + 3x podzielić na 2 = 3
b) 0,5 (2 - 4x)= 3 -x
(-0,5x + 1) +3x /2=3 /*2
(-0,5x + 1)+3x=6
2,5x=6-1
2,5x=5
x=2
b)
1-2x=3-x
-2x+x=3-1
-x=2
x=-2
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(-0,5x + 1) +3x /2=3 /*2
(-0,5x + 1)+3x=6
2,5x=6-1
2,5x=5
x=2
b)
1-2x=3-x
-2x+x=3-1
-x=2
x=-2