Question

obtenha a soluçao de cada equaçao: a)2x=16 b)y+5=9 c)3z-1=14 d)7=19-2x e)10-4y=y f)3-z=5z-15

Answer 1

a) x= 16/2 = 8
b) y= 9-5 = 4
c) 3z= 14+1= 15 z= 15/3=5
d) -26= -2x .(-1) = 26 = 2x = x= 26/2 = 13

Answer 2

a) 2x = 16
x = 8

b) y + 5 = 9
y = 4

c) 3z -1 = 14
3z = 15
z = 5

d) 7 = 19 - 2x
-12 = -2x (-1)
2x = 12 --> x= 6

e) 10 - 4y = y
10 = 5y
y = 2

f) 3-z = 5z - 15
18 = 6z
z = 3


Espero ter ajudado ;-)