Question

120 + ( 34 + 3x ) + ( 6 + x ) = 0

 

Answer 1

kgos @gmail.com

Answer 2

120 + (34 + 3x) + (6 + x) = 0

=> 120 + 34 + 3x + 6 + x = 0

=> (120 + 34 + 6) + (3x + x) = 0

=> 160 + 4x = 0

=> 4x = -160

=> x = -160:4

=> x = -40

Answer 3

120 + (34 + 3x) + (6 + x) = 0

120 + 34 + 3x + 6 + x = 0

 (120 + 34 + 6) + (3x + x) = 0

 160 + 4x = 0

 4x = -160

  x = -160:4

=> x = -40