Question

resolva as equações a seguir A)10x+4=0 B) x+4=6-8x C) 4y+10=4+6y

Answer 1

A) 10x + 4 = 0

10x = -4

x = -4/10 (÷2)

x = -2/5

B) x+4 = 6 - 8x

x + 8x = 6 - 4

9x = 2

x = 2/9

C) 4y + 10 = 4 + 6y

4y - 6y = 4 - 10

-2y = -6 ( • -1 )

2y = 6

y = 6/2

y = 3