5x = 25
What is 5
x/2 = 4
What is 8
2a= 10
d / 7 = 2
What is 14
7n =14
k/10 =5
What is 50
6n = 72
What is 12
d/4=25
What is 100
10b=120
d/30=8
What is 210
-21y = -756
What is 36
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