Answer:
3x - 9
Explanation:
in expressions, we don't get the value of the unknown so, we just workout by putting the like terms together.
(4x + 2x - 3x) - 9 = 3x -9.
3x-9
2x(2+1)-3(x+3)
=4x+2x-3x-9
=6x-3x-9
=3x-9
I hope this will help you
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