Question

Ajuda pessoa por favor ......

Answer 1

Resposta:

$1)\\a) 2\\b) -3\\c)\frac{-7}{5}$

$2)\\a) \frac{16}{11}\\b) 6\\c)\frac{-4}{5}$

Explicação passo-a-passo:

$1)\\a)\\10x-8=3x+6\\10x-3x=6+8\\7x=14\\x=\frac{14}{7} \\x=2$

$b)\\5+2(3y-1)=7y+6\\5+6y-2=7y+6\\6y-7y=6-5+2\\-y=3\\y=-3$

$c)\\4t-(2t-5)=3-4(2t+3)\\4t-2t+5=3-8t-12\\2t-5=-9-8t\\2t+8t=-9-5\\10t=-14\\t=\frac{-14}{10}\\\\t=\frac{-7}{5}$

$2)\\a)\\\frac{x}{8}-2=\frac{3x}{6}+x-4\\3x-48=12x+24x-96\\3x-48=36x-96\\3x-36x=-96+48\\-33x=-48\\x=\frac{-48}{-33}\\x=\frac{16}{11}$

$b)\\\frac{n}{3}+\frac{n+2}{4}=4\\4n+3(n+2)=48\\4n+3n+6=48\\7n+6=48\\7n=48-6\\7n=42\\n=\frac{42}{7}\\ n= 6$

$c)\\\frac{2k+1}{2} - \frac{k-3}{6} = \frac{1}{3}\\ 3(2k+1)-(k-3)=2\\6k+3-k+3=2\\5k+6=2\\5k=2-6\\5k=-4\\k=\frac{-4}{5}$

Bons estudos!

Espero ter te ajudado!! =)

(Desculpa a demora, foi trabalhoso pra fazer kk)