Answer:
Step-by-step explanation:
sadly there is no good reason..the teachers are also annoying...
Answer:
5 - 2 x 9 + 9^2 divided by 3
5 - 2 x 9 + 81 divided by 3
5 - 18 + 81 divided by 3
5 - 18 + 27
-13 + 27
14
Using PEMDAS:
Parenthesis First
Exponents
Divide or Multiply
Add or subtract
Answer:
11 + 2x
Step-by-step explanation:
In algebra, like terms are terms that have the same variables (letter after the number). Like terms can be combined for example the 6 and 5 have the same variable (none) so they can be combined. IMPORTANT! While we do combine the 2x and the 4x since the 2x came after a minus sign we consider it a negative, so -2x + 4x (or 4x - 2x) is 2x NOT 6x
