Question

Resolva as esquaçoes
A) x-2/2 + 1=×/3 -4
B)x/2 -3=x+2
C)6(34+2x)=2(5x-50)
D)3(5x-180+45)=-4(x-72)

Answer 1

Vamos lá:

a) (x-2)/2 +1 = x/3-4
   3x-6/6 + 6/6 = 2x/6 -24/6
   3x-6 + 6 = 2x - 24
   3x-2x=-24
      x = -24

b)x/2 - 3 = x +2
   x/2 -6/2= 2x/2 +4/2
   x - 6 = 2x + 4
   x-2x = 4+6
     -x = 10 * (-1)
      x= -10

c)6(34+2x)=2(5x-50)
   204+12x=10x-100
    12x-10x=-100-204
       2x = -304
        x = -304/2
        x = -152


d) 3(5x-180+45)= -4(x-72)
    15x - 540  + 135 = -4x + 288
    15x+4x = 540 -135+288
     19x = 693
      x = 693/19
      x = ~36,47
     
Espero Ter Ajudado!!!

Bons Estudos!!!

-Expertiee

Answer 2

a) x-2/2 + 1=×/3 -4

x - 2    + 1   =  x    - 4
--------            -----
  2                    3

3.(x - 2) + 6         2x - 24
-----------------  = -------------
         6                    6

3x - 6 + 6 = 2x - 24
3x = 2x - 24
3x - 2x = - 24
x = - 24

***********************************
b)
x/2 -3=x+2
  x    - 3  =  x + 2
-----
  2

  x    -  x   =  2 + 3
----
  2

 x     -  x   =  5
-----
  2

x - 2x = 10
-------    ------
   2          2

x - 2x = 10
- x = 10 (-1)
x = - 10

***********************************

C)

6.(34 + 2x) = 2.(5x - 50)
204 + 12x = 10x - 100
12x - 10x = - 100 - 204
2x = - 304
x = - 304/2
x = - 152

***************************************
D)
3.(5x - 180 + 45) = - 4.(x - 72)
3.(5x - 135) = - 4x + 288
15x - 405 = - 4x + 288
15x + 4x = 288 + 405
19x = 693
x =   693
        -------
         19