合并同类项综合练习题120

1、合并同类项综合练习题4a+ 2a+ 3a10x 8c + 4x 3c8m + 8d+ 16m 6d+ 10m + 15d3pq+ 6pq+ 15pq pq2 2 2 230x y+ 2y z+ 25x y 3y z4t 4t2+ 6t + 11t2 + 94 175x y + y + x5 656lit2+ 6ab+ 7t2 + 71ab 9n 5ab225xy + 5x y+ 2xy + 18xy合并同类项综合练习题3f - 8f - 7f4z- 4c 2z 4c2xy 13xy 19xy xy7t 6t2+ 2t + 14t2 + 65b 2n 8b+ 14n 20b 20n2 2 2 2

2、23a7mn+ 5x y 13mn + 27mnb+ 5b2c+ 6a2b 6b2c6175x + t + t x56565n2 7ab+ 3n2 19xy 7t 9xy8合并同类项综合练习题8e+ 3e 5e4n 9d+ 8n+ 6d4pq 9pq+ 15pq + pq7n+ 7n4 1 2 3 + 3n 7n2 14a 9d 18a 10d+ 13a 12d2 2 2 27x y+ 5y z+ 22x y 7y z14ypq 9x 8pq 8ab+ 3y2 + 826xy + 7x y 2xy + 2xy合并同类项综合练习题5c+ 8c + 9c3n 6e+ 2n 7e9b 8n 10b

3、12n 18b+ 18n9mn 7mn + 19mn mn2 2 2 230x y+ 8y z+ 14x y 8y z5n + 8n + 12n2 217z2 4ab+ 6z2 327pq12x y+ 20pq 26pq6775m + y y m5 858 pq + 4z 6pq7合并同类项综合练习题7e 4e 8e6t 7b + 4t + 7b4ab 17ab 18ab+ ab3a + 5c + 11a+ 18c+ 15a + 11c2 2 2 28x y+ 7y z+ 5x y 9y z9n 6n575z n n + z 636 9n+ 13n2 511x2 2mn + 9x2 + 526

4、pq 13x y 6pq + 26pq6pq 2n + 3pq7合并同类项综合练习题2c+ 2c + 9c7t 7c 4t + 5c5xy 17xy + 19xy xy4t + 2t2+ 4t 13t2 + 95a+ 4n 20a 14n+ 20a 10n2 2 2 228a ab+ 9t + 7ab7b+ 5b2c+ 7a2b 3b2c1775z + t t z4 6462m2+ 4ab+ 9m2 16ab 15x2y 17ab 12ab合并同类项综合练习题5e 4e+ 5e6t + 9b 6t 5b8pq 8pq 14pq + pq3b 4d+ 20b 3d+ 14b 16d9x + 5x

5、2 + 2x 8x2 62 2 2 229x y+ 3b c 4x y + 4b c6 175x n + n + x5 65612x2 + 6ab 3x2 82pq + 4x2y + 11pq+ 9pq合并同类项综合练习题8c 7c + 9c9z+ 9a 5z 7a6a+ 8c + 3a 7c 20a + 14c9xy 7xy + 11xy + xy2 2 2 212x y 3y z+ 10x y+ 5y z5t 4t? + 9t 20七2 71175m n + n m2 8 2 815t2 + 7pq + 3t2 51ab+ 3y 8ab65ab+ 10a b 18ab 8ab合并同类项综合

6、练习题7f - 7f - 5f7z+ 6a + 3z + 10a9m + 4d- 16m 4d+ 18m + 19d5mn- 16mn 18mn mn20apq 4m + 3pq b+ 6b2c 10a2b + 5b2c4t + 2t2+ 4t + 17t2 + 41675x + t t x10m2+ 4pq + 8m2 96ab 13x y 13ab 18ab2727合并同类项综合练习题8e 2e+ 5e10t + 3f + 5t 8f7xy 12xy + 20xy xy2z 4z2 4z 18z2 + 26m 4d 17m 12d 15m + 11d2 2 2 210x y + 4b c 12x y 4b c5175x + n + n + x47478