Help.
Yes?
He's typing
okay..
Which step should be completed first to solve the equation \[9-3q=14\]? A. Add 14 to both sides. B. Divide both sides by 3. C. Divide both sides by −3. D. Subtract 9 from both sides. & ima a girl. xD
Which one do you think it is?
@kweenlexis
A idk
Nope, think again, you want to get the 3q by itself.
Remember, PEMDAS (or BIDMAS if you're british), the order of operations
So, we need to subtract 9 from both sides correct? @kweenlexis
yeah ig
Therefore, which answer is it? Because like @MysticalFlames said PEMDAS
@kweenlexis
PEMDAS, is paranthesis, exponents, multiplication, division, addition, and subtraction Parenthesis is first and then so on
Okay so we are trying to solve for q. We want to get \[3q\] alone and by itself! @kweenlexis
So, now you tell us what you think it is? @kweenlexis
With \[3q\] is 9 and we don't want 9 on that side! This is because we want \[3q\] alone! 9 is a positive number so we want to move it to the other side.
So, we want to get 3q by itself, so to do that, we need to do what?
What is the opposite of addition? @kweenlexis
Subtraction
Correct, so that means we must subtract what from what?
Do you see how I got that? @kweenlexis
No not really @AihberKhan
So yes @kweenlexis the answer is D, because you must get the 3q by itself. Therefore, we must subtract the 9 from 14
Okay well let me explain. 9 is positive. The opposite is subtraction. If we want it to cancel out we would subtract so that we will get 0! But we have to subtract it from BOTH sides.
Then that leaves us with the -3q on one side and 5 on the other.
So when we do that we would get: \[3q = 14 - 9 \]
Hope that helped! Have a great day! :)
You subtracting 9 from 14 right?. \[14-9=5\] so like how u got 3q from 5??
so then -3q = 5 @kweenlexis
but you don't need to figure that out, because that isn't part of your problem. @kweenlexis
ok thanks
Yep, no probelmo
@kweenlexis So you got the answer right?
Join our real-time social learning platform and learn together with your friends!