–3x + 9 = –3(2x + 3) + 3(x – 4) + 1
Use distributive property:
-3x + 9 = -6x -9 + 3x -12 + 1
Simplify by combining like terms:
-3x + 9 = -3x - 20
Subtract 9 from both sides:
-3x = -3x -29
Add 3x to both sides :
0 = -29
This is a false statement, so there are no solutions.