What is 3+3*3+3 equal?

the answer is 21

15

Step-by-step explanation:

Step 1: There are no grouping symbols in this problem. Moving on ...

Step 2: There are no exponents or roots in this problem. Moving on ...

Step 3: Multiply or divide left to right as they appear.

=3+9+3

Step 4: Add or subtract left to right as they appear*.

=15

Note that you can also break the problem into its terms and evaluate it vertically. Terms are separated only by + or -.

The terms are:

3

3*3

3

Simplify:

3

9

3

Combine in ANY order*:

15

*Addition and subtraction can be performed in any order as long as you maintain the values of the terms.