I believe the answer should be DB = 10.
To find the missing side, you have to cross multiple the values on each side, and each value should be equal to each other.
Answer:
x=2, w=22, v=10
Step-by-step explanation:
(n - 4) - 3 = 3 - (2n + 3)
Let's first start by removing the parenthesis.
(n-4) = +(n-4) so we just remove the parenthesis without changing the signs. So the first part of the equation will be n - 4 - 3.
Before (2n+3), we can notice a minus sign (-) which means that to remove the parenthesis, we need to change the signs of the numbers and variables inside.
-(2n+3) = -2n-3
So the second part of the equation becomes 3 -2n - 3
(n-4) - 3 = 3 - (2n+3)
n - 4 - 3 = 3 - 2n - 3
n - 7 = -2n
Now we need to put the variables apart and the constants apart. So we subtract n from each side:
n - n - 7 = -2n - n
-7 = -3n
Divide both sides by -3
(-7)/(-3) = (-3n)/-3
7/3 = n
In the equation (n-4) - 3 = 3-(2n+3), the value of n is n=7/3
Hope this helps! :)
Among the choices provided the statements are true about the ordered pair (−1,−4)and the system of equations x−y=3 7x−y=−3 is that "<span>When (−1,−4) is substituted into the first equation, the equation is true."
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