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simplify the following Expressions expression one: 6 + x + 9 Expression two: x + 2 + 8x Expression three: 4x + 3y + 23 y expression four: 4 (15a) expresion five: x²+2x+3x²+10x

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Answers in bold:

expression one: 6 + x + 9 = x + 15

Expression two: x + 2 + 8x = 9x + 2

Expression three: 4x + 3y + 23y = 4x + 26y

expression four: 4 (15a) = 60a

expresion five: x²+2x+3x²+10x​ = 4x² + 12x = 4x(x + 3)

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