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-2a 4a + 1 = 2a + 7 2a + 1 = 2a = -1 -1 2 a = 3 6 3b + 5 = b + 15 -b + 5 -5 -5 2 b = 5 = 15 = 10 Notice! The Pronumerals are on the same side! 7b + 7 - 2b + 3 = 32 5b + 10 = -10 -10 b = 4.4 = 22 5 + 3a +3a 5a - 4 = -3a 8a- 4 = 8a = 4 a = 0.5 +4 8 (hint: do not be afraid of 0) |