1.
a. x + 3 = -9
x = -9 - 3
x = -12
b. 3x = 5x - 12
3x - 5x = -12
-2x = -12
x = -12/-2
x = 12/2
x = 6
c. 6x - 17 = -3x + 10
6x + 3x = 10 + 17
9x = 27
x = 27/9
x = 3
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1.
a. x + 3 = -9
x = -9 - 3
x = -12
b. 3x = 5x - 12
3x - 5x = -12
-2x = -12
x = -12/-2
x = 12/2
x = 6
c. 6x - 17 = -3x + 10
6x + 3x = 10 + 17
9x = 27
x = 27/9
x = 3