1. Ms. G says that a solution to the equation 2x - 6 = 7x must also be a solution to the equation 5x-6=10x Write a convincing argument why this is true.
Well if you subtract 2x from 7x, you get 5x. If you subtract 5x from 10x, you get 5x. When you Do that to both formulas, you end up with the same formula: 5x=-6.