Question

Resolva as seguintes equações do 1 grau com as incógritas em R:

A) (x-4)=2(x+1)
B) 3(x-1)=2x+√2
C) 3(x-√10)=3(x+1)-x
D)2x+1,5x=75
E)3+2x=4x=4x-√5

Answer 1

a) x-4 = 2x + 2
-2x + x = 2 + 4
-x = 6

b) não sei Kk

c) não sei tbm

d) 3,5x = 75
x = 75/3,5
x = 21.4285714286

e) não sei tbm

P.S: Se estiverem erradas .... Perdão!

Answer 2

A-)   (x-4)=2(x+1)                B-)   3(x-1)=2x+v2           
         x-4=2x+2                             3x-1=2x+1,41
       x-4+4=2x+2-4                       3x-1+1=2x+1,41+1
          x=2x-2                                 3x=2x+2,41
       x-2x=2x-2-2x                          3x-2x=2x+2,41-2x
              -x=-2                                x=2,41
                x=2

C-) 3(x-v10)=3(x+1)-x                         D-)  2x+1,5x=75
      3x-v30=2x+3                                        3,5x=75
      3x-5,47=2x+3                                       3,5x =75
      3x-5,47+5,47=2x+3+5,47                   __75__
      3x=2x+8,47                                            3,5
      3x-2x=2x+8,47-2x                                 x=20
      x=8,47

  
  E-)   3+2x=4x-v5
          3+2x-3=4x-v5-3
          2x=4x-5,23
          2x-4x=4x-5,23-4x
          -2x=-5,23
           2x=5,23
          x=2,615