Question

Note: Enter your answer and show all the steps that you use to solve this problem.

*btw the note is the same thing for question 6*
1. 7x=42

6.simplify the expression 8to the 2power +9(12÷3×2)-7.​

Answer 1

1) x = 6

2) 129

Explanation:

For equation 1:

`7x=42\\\\(7x=42)/(7)\\\\ \boxed{x=6}`

Expression 2:

Apply PEMDAS Rule.

`8^2+9((12/3)*2)-7\\\\8^2+9(4*2)-7\\\\8^2+9(8)-7\\\\64+9(8)-7\\\\64+72-7\\\\136-7\\\\\boxed{129}`

Hope this helps.