First one is wrong bcs it should be smaller than the answer.
The second one is correct bcs to find the second number we need to do inverse operation, here is subtraction.
Third one is correct bcs this is the same (but if u r searching only for relating not same, then the third kind of wrong)
The last one is correct
No spaces? like t h i s? or like thiiiss??? is this bugging you ????
anyway
use elimination
multiply secn equation by -1
-3x-2y=-6
add to other equation
-3x-2y=-6
<u>4x+2y=10 +</u>
1x+0y=4
x=4
sub back to solve for y
3x+2y=6
3(4)+2y=6
12+2y=6
minus 12 both sides
2y=-6
divide 2
y=-3
(4,-3)
Answer:
Solving the equation
we get 
Step-by-step explanation:
We need to find the value of n in the given equation

The equation can be simplified by using multiplication and division rules.
The first step is to solve brackets.

Then, Divide both sides by 247.2

Now, divide both sides by 30

We get the value of n: n=0.10582
So, solving the equation
we get 
I hope this diagram explains it and helps you :)