Answer:
1)
3x + 7 = 13
3x = 13 - 7 = 6
x = 6/3 = 2
x = 2
2)
8 - 2b = -2
-2b = -2 - 8 = -10
b = -10/-2 = 5
b = 5
3)
5 + 4g + 8 = 1
4g = 1 - 5 - 8 = -12
g = -12/4 = -3
5)
Y = 6x - 15
(8,33) (-1,-21) (5,15)
6)
Y = -4x + 9
(-5, 29) (2, 1) (4, -7)
7)
Y = 2x - 1
(-4, -9) (0, -1) (7, 13)
8)
Y = -x + 9
(-9, 0) (1, 8) (5, 4)
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