Question

resolver as equacoes: a)2x+4=10
b)5k-12=20
c)2y+15-y=22
d)9h-2=16+2h

Answer 1

Resolver as equacoes: a)2x+4=10a)2x+4=10
2X + 4 = 10    TEMOS QUE achar o valor de (x)  ISOLAR O (x)
2X = 10 - 4
2X = 6
x = 6/2
x = 3

b)5k-12=20   achar o  valor de (k)
5k - 12 = 20
5k = 20 + 12
5k = 32
k = 32/5

c)2y+15-y=22  achar o valor de (y)
2y + 15 - y = 22
2y - y + 15 = 22
2y - y = 22 - 15
y = 7

d)9h-2=16+2h    achar o valor de (h)

9h - 2 = 16 + 2h
9h = 16 + 2h + 2
9h - 2h = 16 + 2
7h = 18
h = 18/7