Question

4y + 7 = 5y + 456 - 9n = - 5n10 - 11n = 15 - 12n

Answer 1

4y-5y＝4-7
4y-5y＝-3
-y＝-3
y＝3

Answer 2

It looks like you have a system of linear equations with multiple variables. Let's solve it step by step:

1. The first equation is 4y + 7 = 5y + 456. We can simplify this equation by moving all the terms involving y to one side:

   4y - 5y = 456 - 7 -y = 449

Now, we have the value of y:

y = -449

2. The second equation is 9n = -5n10 - 11n. Let's combine like terms:

   9n = -50n - 11n

   9n = -61n

Now, subtract 9n from both sides to isolate n:

9n - 9n = -61n - 9n 0 = -70n

Since 0 is equal to -70n, n can be any real number.

3. The third equation is -11n = 15 - 12n. Let's isolate n on one side:

   -11n + 12n = 15

   -n = 15

Now, multiply both sides by -1 to find the value of n:

n = -15

So, the solutions for the variables are:

y = -449 n = -15

Please double-check the original equations to ensure that there are no typos or errors, as the equations provided were a bit unclear.