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2x = 11 - 3
2x = 8
x = 4
b. 7x = 8 + 3x
4x = 8
x = 2
c. 3p + 5 = 17 - p
4p = 12
p = 3
d. 7q = 5q - 12
2q = -12
q = -6
e. 6-5y = 9-4y
-y = 3
y = -3
f. 7n + 4 = 4n - 17
3n = - 21
n = -7
g. 2(5 - 2x) = 3(5-x)
10 - 4x = 15 - 3x
-x = 5
x = -5
h. -2x + 5 = -(x+9)
-2x + 5 = -x - 9
-x = -14
x = 14
i. 18 + 7x = 2(3x-4)
18 + 7x = 6x - 8
x = - 26
j. 3(2x-3) - 2(1-x) - (x+3) = 0
6x - 9 - 2 + 2x - x - 3 = 0
7x = 14
x = 2