Question

I need help with my math problem #6

Answer 1

Givesn

Let P = 10x + y

Let Q = 10y + x

Solve

P - Q = 54 Substitute in for x and y

10x + y - 10y - x = 54

9x - 9y = 54 Divide the entire equation by 9

x - y = 6

Start by letting x = 9

9 - y = 6 Subtract 9 from both sides.

-y = 6 - 9

-y = - 3

y = 3

Therefore P is 93 <<<< Answer

Check

93 - 39 = 54 which checks.