What value of y will make equal to 2.45?

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Which of the following is another way to express the difference between -5 and 8?