Question

Encontre o valor de N :

a)3.n+2.5.n-10= -49
b)2.n+3.(2.n+7)= 13
c)3.n+2.n+3.(n+1)= 10
d)4.n+2.(n+2)-10= 0
e)n+2= 7
5
f)2.(n+2)= 15
3

ME AJUDEM A MONTAR ESSAS CONTAS E SABER OS RESULTADOS, PORFAVOR

Answer 1

s)3n+2.5n-10=-49》3n+10n=-49+10》13n=39》n=39/13...b)2n+3(2n+7)=23》3n+6n=13-21》8n=-8》n=-1...c)3n+3n+3(n+1)=10》5n+3n+3=0》8n=10-3》8n=7》n=7/8...d)4n+2(n+2)-10=0》4n+2n+4=10》6n=10-4》6n=6》n=1..e)n+2=7》n=7-2》n=5...f)2(n+2)=15》2n+4=15》2n=15-4》2n=11》n=11/2

Answer 2

alguem me ajuda mais coloca tipo

a

B

C

Pra ficar fácil pfv mn assim eu n entendi nada