Please help I will mark brainly

1) -3x-3
2)4w+3x-7
combining like terms is just putting the numbers together, and matching the letters. Just watch your signs (-+)
1st question:
3x + 4 - 6x - 7
You would combine 3x and -6x,
4 and -7
3x + (-6x) = -3x
4 + (-7) = -3x
The simplified expression would be -3x - 3x.
2nd question:
2 + 4w + 3x - 9
You would combine 2 and -9, but NOT 4w and 3x because they don't have similar coefficients.
2 + (-9) = -7
The simplified expression would be 4w + 3x -7
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Hope this helped! Happy Thanksgiving!