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If 2x+2y=22 and 3x -4y=12, what is the value of y/x ? |
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Answer» `3 (2x + 2y =22) to 6x + 6y =66` ` 2 (3x -4y =12) to 6x -8y=24` Subtract the second equation from the first: `6x + 6y =66` `-((6x-8y=24))/(14y=42)` `y =3` Next, you need x so you can determine the value of `y /x.` Substitute 3 for y in one of the original equations: `2x + 2(3)=22` `2x +6 =22` ` 2x =16` ` x =8` Plug your x-axis and y-values into `c/x` to GET `3/8.` Grid in `3/8.` |
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