Question

resolva as equações a seguir , sendo U =Q

b) 8x+10=5x

c)4x+5=3x-19

d)x+5=3x-19

35 pontos hein​

Answer 1

Resposta:

b)

$8x+10=5x\\8x-5x=-10\\3x=-10\\x=-\frac{10}{3}$

c)

$4x+5=3x-19\\4x-3x=-19-5\\x=-24$

d)

$x+5=3x-19\\x-3x=-19-5\\.(-1) -2x=-24 .(-1)\\2x=24\\x=\frac{24}{2} \\x=12$