If mZ1 is 68º and m23 is (3x - 7)º, what is x?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.

How do you put-4,-2,3,7,6 in order from least to greatest