it is impossible to combine like terms. In order to combine like terms you must have like x+x you cant have like 1+x
the parenthesis part you must distribute it.
4 + 3 x 1 and 3 x -3m
4 + 3 -9m
now you combine like terms which 4 and 3 are the same type of term
4+3 = 7 - 9m is your answer
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