Question

resolva as seguintes equações sendo u = q: a) 2× + 5 - 5 x = -1
b)5+6×=5×+2
c)×+2×-1-3=×

Answer 1

Olá,

a)

2x+5-5x = -1
-3x+5 = -1
-3x = -1-5
-3x = -6
-3x/-3 = -6/-3
x = 2

b)

5+6x = 5x+2
6x-5x = 2-5
x = -3

c)

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

Answer 2

a)2x+5-5x=-1
  2x-5x=-1-5
  -3x=-6  .(-1)
  3x=6
  x=6/3
  x=2
b)5+6x=5x+2
  6x-5x=2-5
  x=-3
c)x+2x-1-3=x
  x+2x-x=1+3
  2x=4
  x=4/2
  x=2