what is the order of operations for an equation?

brackets : [ ] 

exponents: power

division : ÷

multiplication:x

addition: +

subtraction: -

order this operation 

[3PWR 2 + 5] ÷ 7

1. 3 PWR 2 = 9
2. 9+5=14
3. 14 ÷ 7 = 2
4. [3PWR 2+5 ]÷7=2

WHAT ARE THE FOR RULES FOR DIRECTED NUMBERS?

1. + +=+
2. --=+
3. +-=-
4. -+=-

solve this problem

5+-3=

collect the like terms and simplify

5x+3x-1=15

8x - 1 = 15

    + 1   +1

8x=16

÷8  ÷8

x= 2

Question: mary wanted 20 tickets to the play. Her Mother gave her x tickets. She needs six more tickets 

expression: 6+x= 20

numbers