Question

Uprość wyrazenia algebraiczne i oblicz wartosc wyrazenia.

a) 14x +2y-12x-5y =

x=-3

y=-1

b)6a+4b-7a+2b=

a=jedna czwarta (ułamek)

b= jedna trzecia(ułamek)

c)5k+6m-4k+10m=

k=2

n=-3

Answer 1

a) 14x+2y-12x-5y = 2x-3y = 2*(-3)-3*(-1) = -6-(-3) = -6+3 = -3

b) 6a+4b-7a+2b = -a+6b = -1/4 + 6*(1/3) = -1/4 + 2 = 1 i 3/4

c) 5k+6m-4k+10m = k+16m = 2+16*(-3) = 2+(-48) = 2-48 = -46