2 Benchmark:Topic #22:Benchmark:MA.7.2.3: Apply inverse relationships between addition and subtraction, and multiplication and division, to solve one- step problems.
3 Definition:Operations that “undo” each other. Multiplying and dividing are inverse operations and so are addition and subtraction.
4 Example/ Drawing/ Formula: First you do the inverse of multiplying 3 which is dividing 3. That cancels out. Then I do 6/3, which equals 2. Next, you take the 9x and divide by 9 which now means you are left with x. Now you bring the 2 down and divide 2 and 9 (2/9). Therefore, x= 2/9.Equation: 9x * 3 = 69x * 3 = 6/3 /39x = 2/ /9x = 2/9
7 Solution to question:x= 2How did I get 2? Here… look at this
8 Explanation To Question: What you have to do is do the inverse of dividing 4 which is multiplying 4. That cancels out. Then you do the same to the other side. 7x4=28. Bring that down(28). Next, 14x/14equals it canceling out. X is left over. So, 28/14=2. Therefore, x=2.14x / 4 = 7
9 Credits: I would like to thank: Google (for the images) Mr. Imamura (for the math)Kahiki ( for helping me to put the image as the background)Mom( for letting me use the computer)