Answer: All the equations have no real and evident solutions
Step-by-step explanation:
(a) 5x -1 -2x = 3x -7
Collect like terms
5x - 2x - 3x = -7 -1
5x - 5x = -8
x = -8/0
x = <> no solution
(b) 6x - (x- 2) = 5x -2
6x - x +2 = 5x -2
Gather like terms
5x - 5x = -2 -2
0x = -4
x = -4/0
x = <> no solution
(c). -3(5x +3) = -15x -9
-3 x 5x - 3 x 3 = -15x - 9
-15x - 9 = -15x -9
Collect like term
-15x +15x = -9 +9
0 = 0
Therefore no real solutions.
(d). 10x + 4 + x = 4 + 11x -1
Collect like terms
11x - 11x = 3 - 4
0x = -1
x = -1/0
x = <> no real solution.
