Zapisz w jak najprostszej postaci:
a) -4(2x=0,5)
b) 3(x²-2)-(5-6x²)
c) -3(1-2y)=½(6-12y)
d) -(x-2)-4(½-x)
a) -4(2x+0,5)=-8x-2
b) 3(x²-2)-(5-6x²)=3x²-6-5+6x²=9x²-11
-3+6y=3-6y
12y=6/:12
y=1/2
d) -(x-2)-4(½-x)=-x+2-2+4x=3x
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a) -4(2x+0,5)=-8x-2
b) 3(x²-2)-(5-6x²)=3x²-6-5+6x²=9x²-11
c) -3(1-2y)=½(6-12y)
-3+6y=3-6y
12y=6/:12
y=1/2
d) -(x-2)-4(½-x)=-x+2-2+4x=3x