Question

resolva as equações

a) 3-×=2

b) ×+3= 8

c) ×-1+7= 5×

d) × +9-2= 10​

Answer 1

Resposta:

a) 3-x = 2

-x = 2 - 3

-x = -1

x = 1

b)x+3 = 8

x = 8-3

x = 5

c)x-1+7=5x

5x-x = -1+7

4x = 6

x= 6/4

x = 3/2

d)x+9-2=10

x = 10-9+2

x = 3