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现在参加这个测试
ALG 1A - Unit 2, Lesson 2: Variables on Both Sides
-20=-4x-6x
x=
6=1-2n+5
n=
8x-2=-9+7x
x=
a+5=-5a+5
a=
4m-20=2m
m=
p-1=5p+3p-8
p=
5p-14=8p+4
p=
2p-4=-9+p
p=
参加了这次测试的学生也参加了 :
Degrees for a polygon
Rotations: "do a 180"
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