Question

resolva as equações de 1 grau

a)× + 15 = 20

b)× + 3 = 16

c)× -16 = -20

d)5× = 60

e)× -8 = -27


obs : responder com a conta se puder ​

Answer 1

Resposta:

a- x=20-15=5

X=5

b-X=16- 3=13

x=13

C x=(-20) + 16= -4 (pois sinal diferente subtrai e conserva o sinal do maior) X= -4

D- 5x=60

X= 60/5= x=12

E- x=(-27) + 8= X= -19

Answer 2

Resposta:

a) x + 15 = 20

x = 20-15

x = 5

b) x + 3 = 16

x = 16-3

x = 13

c) x - 16 = -20

x = -20 + 16

x = -4

d) 5x = 60

x = 60/5

x = 12

e) x - 8 = -27

x = -27 + 8

x = -19