oblicz: a. -5t +t-6-7t+8t+2+2t- dla t= 3,2
b. -7x+6y+3x-2y+x-3y dla x= -2/3 i y 4/7
a. -5t +t-6-7t+8t+2+2t=
-t-4= -3,2-4=-7,2
b. -7x+6y+3x-2y+x-3y=
-3x+y=
-3*(-2/3)+4/7
2+4/7=3,5
;))
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a. -5t +t-6-7t+8t+2+2t=
-t-4= -3,2-4=-7,2
b. -7x+6y+3x-2y+x-3y=
-3x+y=
-3*(-2/3)+4/7
2+4/7=3,5
;))