Resposta :
Resposta:
Explicação passo a passo:
a)
[tex]-3(x+\frac{5}{3} )=2(2x-3)\\-3x-5=4x-6\\-3x-4x=-6+5\\-7x=-1\\x=\frac{1}{7}[/tex]
b)
[tex]\frac{7-n}{4} =\frac{n+1}{2} \\\\2(7-n)=4(n+1)\\14-2n=4n+4\\-2n-4n=4-14\\-6n=-10\\n=\frac{10}{6} =\frac{5}{3}[/tex]
c)
[tex]19-4-3(x-4x)=-2x\\15-3x+12x=-2x\\9x+2x=-15\\11x=-15\\x=-\frac{15}{11}[/tex]
d)
[tex]\frac{x}{3} -2=\frac{x}{5} \\\\\frac{5x-30=3x}{15} \:\:\:.15\\\\5x-30=3x\\5x-3x=30\\2x=30\\x=15[/tex]
Espero ter ajudado!
Desculpe qualquer erro.