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Mathematics
Efrain
27 March, 08:27
How can you tell if (4,7) is a solution
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Elianna Stanton
27 March, 09:36
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you have to plug it into your equation
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Arnav Gould
27 March, 10:48
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In order to check if the x and y value is a solution then you need to plug in your numbers for the x and why value.
Take this as an example with your solution (4,7) let's try 4x-9=y. We want to plug in the values of each variable so the new equation will look like 4 (4) - 9 = (7). Now you want to multiply and get 16-9=7 next subtract and you get 7=7. This would be a solution for the problem.
Now we can try 3x+14=y do the same thing from last example and you'll get 3 (4) - 14=7 and now multiply to get 12-14=7 now subtract and you'll get - 2=7 which is NOT a solution to this equation so it would become - 2≠7.
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