Question

resolva as seguintes equações: A) 2x+5=x+10
B) x-7=5-x
C) 2(x-6)=-x
D) 2(-x+8)+3=x+1-4(x+2)
E) 10x-7=3x+7(x-3)
F) 5(2-3x)+8x=10(1-x)+3x
PRECISO MUITOOO

Answer 1

a) 2x -x = 10-5
     x = 5

b) x+x = 5+7
     2x = 12
     x = 12/2
      x = 6

c) 2x - 12 = -x
    2x+x = 12
    3x = 12
    x = 12/3
    x = 4

d) -2x+16 + 3 = x + 1 - 4x - 8
     -2x-x+4x = -16-3+1-8
     -3x + 4x = -26
      x = -26


e)10x - 7 = 3x +7x -21
    10x-3x-7x = 7-21
    0x = -14
     x = 0

f)10 -15x + 8x = 10 - 10x +3x
   -15x+8x+10x-3x = 10 -10
   -18x +18 x = 10-10
   0 = 0 

Answer 2

Resposta:

a) 2x -x = 10-5

    x = 5

b) x+x = 5+7

    2x = 12

    x = 12/2

     x = 6

c) 2x - 12 = -x

   2x+x = 12

   3x = 12

   x = 12/3

   x = 4

d) -2x+16 + 3 = x + 1 - 4x - 8

    -2x-x+4x = -16-3+1-8

    -3x + 4x = -26

     x = -26

e)10x - 7 = 3x +7x -21

   10x-3x-7x = 7-21

   0x = -14

    x = 0

f)10 -15x + 8x = 10 - 10x +3x

  -15x+8x+10x-3x = 10 -10

  -18x +18 x = 10-10

  0 = 0

Explicação passo-a-passo: