Piszcie z rozwiązaniami... a)7x-3(5x+2)-6(7+2x)=........ b)-5(3y-7)-2(6+4y)+3y=.......... c)4c-(3c+2)-10c=........ d)7x-8-(5x+6)=...... e)9y+(8-3y)+16=... f)-2a(4a-1)+5a(3a+2)=.... g)3a(b-5a)-2a(3b+a)=..... h)-5x(2x+3y)+x(x-2y)=.....

a)7x-3(5x+2)-6(7+2x)=7x-15x-6-42-12x=-20x-48 b)-5(3y-7)-2(6+4y)+3y=-15y+35-12-8y+3y=-20y +23 c)4c-(3c+2)-10c=4c-3c-2=c-2 d)7x-8-(5x+6)=7x-8-5x+6=2x-2 e)9y+(8-3y)+16=9y+8-3y+16=6y+24 f)-2a(4a-1)+5a(3a+2)=-8a(kw)+2a+15a kw+10a=7a kw+12a g)3a(b-5a)-2a(3b+a)=3ab-15a kw-6ab-2a kw=17a kw -3ab h)-5x(2x+3y)+x(x-2y)= -10x kw -15xy+xkw-2xy=-x kw-17xy-10x