Question

Resolva as seguintes equações:

a) 5 (x-3)-4 (x+2)=2+3 (1-2x)
b)(4x+6)-2x=(x-6)+10+14

Answer 1

a) 5 (x-3)-4 (x+2)=2+3 (1-2x)
    5.x + 5.-3 -4.x -4.2 = 2 + 3.2 + 3.-2x
     5x    -15   -4x   -8  = 2   +6     -6x
     5x -4x +6x = 2 +15 +8
     7x = 25
       x = 25/7


b)(4x+6)-2x=(x-6)+10+14
     4x +6 -2x = x -6 +10 +14
     4x -2x -x = -6 +10 +14 -6
     4x -3x = -12 +24
     x = 12