Help me fast i am in school and i need to finish this

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

Parks is wearing several rubber bracelets one third of the bracelets are tie-dye 1/6 are blue and 1/3 of the remainder are camouflage if parks wears 2 camouflage bracelets how many bracelets does he have on

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?