Collecting Like Terms
Expanding
100
2a + 2a
4a
100
3x + 7x
10x
200
854435353a + 1a
854435354a
200
10x x 3x
30x
300
5a + 5b +5a + 5a
10a + 10b
300
30x - 27x
3x
400
-5 + 8
3
400
-10 - 2
-12
500
1a + 1a
2a
500
-3 - 10
-7
M
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