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4(a + 2) + 6 = 20 4a + + 8 + 6 = 20 -14 -14 a = 1.5 = 20 = 6 4 3(b + 5) - 5b = 40 -2b + 15 = 40 + - 5b = 40 -2b = 25 b = -12.5 -2 -4(2d - 5) - 3 = 50 -8d + -8d + 17 = 50 -8d = 33 -3 = 50 d = -4.125 - 17 -8 -8(-2d - 6) - 2d = 50 (hint - like terms on same side!) + 48 - 2d = 50 + 48 = 50 -48 -48 14 14 d = 1/7 = |