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2. Solve each given equation and show your work. Tell whether it has one solution, an infinite number of solutions, or no solutions, and identify each equation as an identity, a contradiction, or neither.
(a) 6x + 4x - 6 = 24 + 9x
(b) 25 - 4x = 15 - 3x + 10 - x
(c) 4x + 8 = 2x + 7 + 2x - 20

Respuesta :

a) 6x + 4x - 6 = 24 + 9x
    10x - 9x = 24 + 6
               x = 30
b) 25 - 4x = 15 - 3x + 10 - x
    25 - 4x  = 25 - 4x
             
Infinite Solutions.

c) 4x + 8 = 2x + 7 + 2x - 20
   4x - 4x = 7  - 20 - 8
    0 = - 22
No solution

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