Odpowiedź:
Szczegółowe wyjaśnienie:
a) 5+6x+(4y-5x-3)=5+6x+4y-5x-3=6x-5x+4y+5-3=x+4y+2
b) 2u-4w+(7-u+w)=2u-4w+7-u+w=2u-u-4w+w+7=u-3w+7
c) 2a+(3a-2b)+(a+b)=2a+3a-2b+a+b=2a+3a+a-2b+b=6a-b
d) 2-3s+(2-3s+4t)+(1+6s)=2-3s+2-3s+4t+1+6s=-3s-3s+6s+4t+2+2+1=4t+5
e) 5m+3n-5-(2m-3n-5)=5m+3n-5-2m+3n+5=5m-2m+3n+3n+5-5=3m+6n
f) 3-(4a-6b)+(2-a-7b)=3-4a+6b+2-a-7b=-4a-a+6b-7b+3+2=-5a-b+5
g) - 2c+4-(3c+2d)-(5d-2)=-2c+4-3c-2d-5d+2=-2c-3c-2d-5d+4+2=-5c-7d+6
h) 8p-(3-4p-r)-(2+3p+5r)=8p-3+4p+r-2-3p-5r=8p+4p-3p+r-5r-3-2=7p-4r-5
