3x - 1 = 3x + 1
subtract 3x from both sides to get (-1 = 1). This is a false statement so it is: CONTRADICTION
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4x - 11 = 7
add 11 to both sides and then divide both sides by 4 to get [tex](x = \frac{18}{4} = \frac{9}{2})[/tex]. This statement is true only when x = [tex]\frac{9}{2}[/tex] so it is: CONDITIONAL
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2 - 8x = 2 - 8x
add 8x to both sides to get (2 = 2). This is a true statement so it is: IDENTITY
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x + 1 = -x + 4
add x to both sides, subtract 1 from both sides, and divide both sides by 2 to get [tex](x = \frac{3}{2} )[/tex]. This statement is true only when x = [tex]\frac{3}{2}[/tex] so it is: CONDITIONAL
Answer: B, A, C, A
