Given that the sum of two times of a and - 9 is equal to 15, calculate a

Given that the sum of two times of a and - 9 is equal to 15, calculate a

2a-9=15
The transfer is obtained
2a=24
The coefficient is reduced to 1
a=12
If you have any other questions, please take this question and ask for help,

It is known that a is equal to {xlx2 + ax + B = O}, B is equal to {xlx2 + CX + 15 = O}, a and B = {3,5}
Intersection B = {3}, real number a, B, C

If two sets intersect as 3 and 3 is brought in, a is {9 + 3A + B = 0} B is {9 + 3C + 15 = 0} C can be calculated as - 2. A and B is {3.5}
So 5 is also an element of a set. If we bring in a, we get [{25 + 5A + B = 0} {9 + 3A + B = 0}] and solve the equation, we get a = - 4, B = 3

32 times of a number minus 15 times is equal to the product of 34 and 20

This number = 34 × 20 ^ (32-15) = 40

What's one in 20 plus one in 15

=1/20+1/15
=3/60+4/60
=7/60
I hope I can help you,