Will you do my math homwork

For the equations below which statement is true ? -2x=14 6x=-42

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?