Question

A-69=12+9 ДА 6 9-a=12+9

Answer 1

A-69=12+9
a-69=21
a=69+21
a=90

9-a=12+9
9-a=21
a=9-21
a=12

Answer 2

It seems like you've provided two equations:

1. A - 69 = 12 + 9
2. 69 - A = 12 + 9

Let's solve these equations step by step:

1. A - 69 = 12 + 9

First, simplify the right side of the equation:

A - 69 = 21

Now, to isolate A, add 69 to both sides of the equation:

A = 21 + 69 A = 90

So, the solution to the first equation is A = 90.

Now, let's solve the second equation:

2. 69 - A = 12 + 9

Again, simplify the right side of the equation:

69 - A = 21

Now, to isolate A, subtract 69 from both sides of the equation:

-A = 21 - 69 -A = -48

To get the value of A, multiply both sides by -1 to make A positive:

A = 48

So, the solution to the second equation is also A = 48.

In summary, A is equal to 90 in the first equation and 48 in the second equation.