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4 3 6
6(a-3) + 8(a-2) = 4(5a-1)
6a -18 +8a - 16 = 20a-4
6a + 8a -20a = 18 + 16 - 4
-6a = 30
a = 30/-6 = -5
2. 1/2 (4-x) - 1/2x = 2(x+2) nilai x adalah ,,,,,,
4 - x - x = 4 ( x + 2)
-2x - 4x = 8 - 4
-6x = 4
x = -4/6