How would I solve this. What is the answers

Solve by any method (graphing, substitution or linear combination)y = x - 82x + 3y = 1a) (2, -6)b) (5, -3)c) (4, -4)d) (0, -8)i figured it out. the answer is (5, -3)

Three times the sum of a number and seven is negative thirty-six. what is the number?

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