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Welcome to the presentation on age word problems. Letamp;#39;s get started. Well, I already have one written down here. It says in 4 years, Ali will be 3 times as old as he is today. How old is Ali today? Well, letamp;#39;s just say that x -- thatamp;#39;s a little too big for what I want to write -- x equals Aliamp;#39;s current age. Or his age today. Please forgive my handwriting. If x is Aliamp;#39;s current age -- and here we say, in 4 years. So how old is Ali going to be in 4 years? Well, if x is his current age, in 4 years, heamp;#39;s going to be x plus 4 years old. So that is equal to Aliamp;#39;s age in 4 years. Letamp;#39;s read what other information there is in the problem. It says, in 4 years. So in this situation, thatamp;#39;s a 4, x plus 4, in 4 years Ali will be 3 times as old as he is today. Well, today heamp;#39;s x. So we say, in 4 years. x plus 4. And thatamp;#39;s just -- so, in 4 years. So we could translate that into x plus 4. Thatamp;#39;s going to