How do you simplify the expression 67+84-12*4*9? Algebra Expressions, Equations, and Functions PEMDAS 1 Answer Prashant S. Apr 13, 2018 -281 Explanation: Here, 67+84-12*4*9 = 67+84-432 = 151-432 = -281 Answer link Related questions What is PEMDAS? How do you use PEMDAS? How do you use order of operations to simplify 3(7-2)-8? What are common mistakes students make with PEMDAS? How do you evaluate the expression 5[8+(3-1)]-2? How do you simplify the expression 4(30-(3+1)^2)? How do you evaluate the expression x^4+x if x=2? Is it okay to add first before subtracting in 4-6+3? How do you simplify (-3)^2+12*5? How do you simplify (4-2)^3-4*8+21div3? See all questions in PEMDAS Impact of this question 2426 views around the world You can reuse this answer Creative Commons License