Question

a) + 3 x - 2 = 2 x + 4=
b) + 3 ( + x - 1 ) - 2 ( + x + 1 )= -9=
c) + x + 1 + 2 ( + x - 2 ) = + 6=
d) + 4 x + 6 - 2 x = + x -6 + 10+ 14=
e) + 5 x - 4 = + 3 x - 2 x + 4=​

Answer 1

Resposta:

a)x= 6

b)x= -4

c)x= 3

d)x= 12

e) x= 2

Explicação passo-a-passo:

a)+ 3 x - 2 = 2 x + 4

3x-2x=4+2

x=6

b)+ 3 ( + x - 1 ) - 2 ( + x + 1 )= -9

3x-3-2x-2= -9

3x-2x= -9+3+2

x=-4

c) + x + 1 + 2 ( + x - 2 ) = + 6

x+1+2x-4= 6

3x=6+4-1

3x=9      

x=9/3

x=3

d) + 4 x + 6 - 2 x = + x -6 + 10 +14

+4x-2x-x=-6-6+10+14

+4x-3x= -12+24

x= 12

e) + 5 x - 4 = + 3 x - 2 x + 4

+5x-3x+2x=+4+4

4x=8

x=8/4

x=2