Two numbers total 31 and have a difference of 9. Find the two numbers.

Its worth 10000000 points need asap if you answer correctly ill mark brainliest

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1