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100
v/2=8
v = 16
100
15 + b = 23
b = 8
100
−9x + 1 = −80
x = 9
100
v/4 + 2 = -2
v = -16
200
−15x = 0
x = 0
200
x − 7 = 13
x = 20
200
−15 = −4m + 5
m = 5
200
−6 = n/2 − 10
What is 8
300
−126 = 14k
k = -9
300
m − 9 = −13
m = -4
300
−9x − 13 = −103
x = 10
300

x/-3 - 9 = 12

v = -63

400
m/4 = -13
m = -52
400
−17 = x − 15
x = -2
400
10 − 6v = −104
v = 19
400

-5 = −6 + x/4

x = 4