Please help :( please help :( please help :( please help :( please help :( please help :( please help :( please help :(

12x + 1 = 25 solve the following equation. then place the correct number in the box provided.

Ineed if you could explain and give me the answer you! this needs done

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.