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-4a - 8 = 2a - 6
-4a - 8 + 8= 2a -6 + 8
-4a = 2a + 2
-4a -2a = 2
-6a = 2
a = -2/6
2) 2(c+1 ) = 5c - 7
2c + 2 = 5c -7
2c - 2c + 2 = 5c -2c -7
2 = 3c -7
-3c = -7 -2
-3c = -9
c = 3