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Algebraic expressions Write an expression (in its simplest form) for the perimeter of the square. Write an expression for the perimeter of the rectangle. 2x+2 4x-1 4x-1 2x+2 Which expression is equivalent to -(x + 7)? -x + 7 x - 7 -x - 7 x + 7 Which expression is not equivalent to -(x - 4)? -x - 4 -x + 4 4 - x -x - (-4) Which expression is equivalent to 3x - (2x + 1)? 5x - 1 x - 1 x + 1 -6x2 + 3x Which expression is not equivalent to 3y - 5(y + 1)? 2y - 5 -2y - 5 -5 - 2y 3y - 5y - 5 What is the opposite(*) of the expression 3x - 5? (*) example: the opposite of x is -x What is the opposite of the expression -7x + 2? |