Please solve this question,

will mark brainliest

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.

Solve the proportionx+1 14 = x-1 20 a. -3/17 b.10/7 c.7/10 or d. -17/3

Which expression represents the total amount of money that denise and stacy spent at the carnival