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.-4y-2y=9+3
.-6y =12
.y =12/-6
y=-2
-4y - 2y = 9 + 3
-6y = 12
y = -2
2. a. p + 6 = p + 2
------------------------------------------------ × 6
2p + 36 = 3p + 12
2p - 3p = 12 - 36
-p = -24
p = 24
b. 5(x + 2) = 2(x + 9)
5x + 10 = 2x + 18
5x - 2x = 18 - 10
3x = 8
x = 2