# SOLUTION: Simplify the expression 21-7*2+9 Show your work. Then, show how the solution is affected if addition and subtraction are not applied from left to right.

Algebra ->  Algebra  -> Expressions-with-variables -> SOLUTION: Simplify the expression 21-7*2+9 Show your work. Then, show how the solution is affected if addition and subtraction are not applied from left to right.       Log On

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 Algebra: Expressions involving variables, substitution Solvers Lessons Answers archive Quiz In Depth

 Question 629927: Simplify the expression 21-7*2+9 Show your work. Then, show how the solution is affected if addition and subtraction are not applied from left to right. Answer by nerdybill(6963)   (Show Source): You can put this solution on YOUR website!Applying the "order of operations": 21-7*2+9 21-(7*2)+9 (multiplication first) 21-14+9 (21-14)+9 (addition/subtraction from left to right) 7+9 16