complete the equation so that it has infinite solutions
4x + 10 = ___x + ___
4x + 10 = 4x + 10
complete the equation so that it has no solution
5x + 12 = ___x + 9
5x + 12 = 5x + 18
complete the equation so that it has no solution
-7x - 12 =___x + 12
4x + 10 = ___x + ___
5x + 12 = ___x + 9
-7x - 12 =___x + 12