Question

vamos resolver as seguintes equaçoes do 1 grau ,sendo U=Q
A) 5X-40=2-X
B) 20+6x=2x+26

Answer 1

a)5x-40=2-x
   5x+x=2+40
   6x=42
   x=7

b)20+6x=2x+26
  6x -2x=26-20
  4x=6
  X=6/4
  X= 1,5

Answer 2

A)   5X-40=2-X
      5X-40-2+X
      6X-42
      X=42/6
      X= 7

B) 20+6X=2X+26
    6X-2X+20-26
    4X-6
    X=6/4
    X= 1,5