Question

1. resolva as seguintes equações:

a) 3x+2= -(3x-2)

b) 3x+2=2-3x

c) -2x-1= x-4

d) x=5(1+0​

Answer 1

Resposta:

A)3x + 2 = -(3x-2)

X=0

B )3x + 2 = 2−3x  

3x+3x=2-2

6x=0

x=0/6

x=0

C ) − 2x −1 = x − 4  

-2x-x=-4+1

-3x= -3

x= -3/ -3

x= 1

D )x = 5(1+0,3(2))

×= 5(1+ 0,6)

x= 5 (1,6)

×= 8