Jazzyyyy088888
17.10.2019 •
Mathematics
Given the equations 2x+4/3 y=1 and y-9/13 x=9, by what factor would you multiply the first equation so that combining the two equations would eliminate x?
-9/26
9/26
1/2
-9/13
Solved
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Ответ:
9/26
Step-by-step explanation:
To eliminate variable x we need to make the coefficient of x same and different signs.
In the first fraction the coefficient of x is 2 and i the second fraction the coefficient of x is 9/13
To find the factor that make the coefficient same , we divide 9/13 by 2
9/13 divide by 2 is 9/26
LEts multiply 9/26 and check
9/26 times 2x becomes 9/13 x
We already have same -9/13 x in the second fraction
When we add both x terms then it becomes 0. x will be eliminated
Ответ:
points f, j, and h are collinear
Step-by-step explanation:
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