"3x + 7y - 12" is an algebraic, expression, equation, number, term, in "3x + 2x + 7 - 3", the like terms are, 3x and 2x, 3x and 7, 3x and -3, -3 and 7, Evaluate 2 - 7, -5, 5, 9, -9, Evaluate 2(-7), -9, -14, 14, 9, Evaluate 3x - 4x, 7x, -x, -7x, x, Solve for x: x - 1 = 4, x = 4, x = 3, x = 5, x = -4, the 'x' in "3x + 7" is, a term, a variable, a coefficient, a sum, To simplify an algebraic expression like "2x + x + 7", you would, combine like terms, solve the equation, subtract 7 from both sides, the '3x' in "3x + 7" is, a term, a coefficient, a sum, a variable, the '7' in "3x + 7" is, a term, a constant, a sum, a variable, Distribute 3(x + 1), 3x + 3, 3x + 1, 6, 3, 2x +1 = -7 is an algebraic, equation, expression, term, variable

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