Oblicz wartość liczbową wyrażenia
A)(a+20h dla a=7 i h=1/3
B) -x+2y- 3 dla x=-5i y=-4
7+20*1/3= 7+20/3=21/3+20/3=41/3=13 2/3
-(-5)+2*(-4)-3=5-8-3=-6
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7+20*1/3= 7+20/3=21/3+20/3=41/3=13 2/3
-(-5)+2*(-4)-3=5-8-3=-6