How do you evaluate $9+9*3-12-:2$ ?

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Answer 1 · 2018-03-31T11:49:41

$9+9*3-12-:2=30$

Follow the order of operations as indicated by the acronym PEMDAS.

Parentheses/brackets

Exponents/powers

Multiplication and Division in order from left to right.

Addition and Subtraction in order from left to right.

$9+9*3-12-:2$

There are no parentheses or exponents, so we start with multiplication and division.

Simplify $9*3$ to $27$ .

$9+27-12-:2$

Simplify $12-:2$ to $6$ .

9+27-6#

Simplify $9+27$ to $36$ .

$36-6$

Simplify $36-6$ to $30$ .

$30$

How do you evaluate 9+9*3-12-:29+9*3-12-:2?