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Hello Lois, I hope this Helps. 4y Means 4 Multiply by Y 1. 4 X y 2. y = -3 3 substitute -3 to where y is = 4. 4 X (-3) = -12
4y when y=-3 In other words the question is asking us to find the answer to 4(y) by substituting in y=-3. Therefore we substitute y=-3 into 4(y) giving us 4(-3). We know that if there are brackets we multiple so 4 x -3 which gives us -12 as a positive number multiplied by a negative number always gives a negative answer. =-12
4y when y=-3 This expression basically means 4x-3 A positive number multiplied by a negative number gives a negative answer So 4x-3 = -12
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