-6a + 8 = 2
-6a = -6
a = 1
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A = 4 (7x4) + 8 = 36 (6x4) + 14 = 36
-8a + 6a + 7 = 1 -2a = 1 - 7 -2a = -6 a = 6/2 a = 3 Check: -8(3) + 6(3) + 7 = 1 -24 + 18 + 7 = 1 1 = 1
2 plus 8 equals 8 plus 2 demonstrates the commutative property of addition
6a - 8 - 4a - 2 → 6a - 4a - 8 - 2 → 2a - 10
273 13+8 = 21 and 13*21 = 273