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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.​

1 Answer

6 votes

Answer:

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.

User Skysign
by
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