Question

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

Answer 1

Answer:

1) x = 6

2) 129

Step-by-step explanation:

For equation 1:

$7x=42\\\\\frac{7x=42}{7}\\\\ \boxed{x=6}$

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.