oblicz ratosc liczbowa wyrazenia.
a) -y+8x-z-2x dla x=-2, y=6, z=-3
b) -8y-4z+x-y-2z+1 dla x=-0,5, y=-1 ,z=2
c)9y-(7y+x)+(6x-7y) dla x=-2 , y=3
d) (6a-8b-0,7)-(6,9+a-5b)+1,8 dla a=0,2, b=0,1
e) 0,5abc-(4ab+2abc)+(-bc+5ab) dla a=-2 , b=0,5, c=-4
prosze o pełne rozwiązania dam naj
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a)(-6) + (8 * (-2)) - (-3) - (2 * (-2)) = -15
b)(-6) + (8 * (-2)) - (-3) - (2 * (-(-8)) * (-1)) - (4 * 2) + (-0,5) - (-1) - (2 * 2) + 1 = -13,5
c)(9 * 3) - ((7 * 3) + (-2)) + ((6 * (-2)) - (7 * 3)) = -25
d)((6 * 0,2) - (8 * 0,1) - 0,7) - (6,9 + 0,2 - (5 * 0,1)) + 1,8 = -5,1
e)(0,5 * (-2) * 0,5 * (-4)) - ((4 * (-2) * 0,5) + (2 * (-2) * 0,5 * (-4))) + (((-0,5) * (-4)) + (5 * (-2) * 0,5))=-5