jshind jshind
  • 21-01-2017
  • Mathematics
contestada

solutions for y-7x=-14 and 7y-49x=-2

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love1160
love1160 love1160
  • 21-01-2017
y-7x=-14 is -21

7y-49x=-2 is -44
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bcalle
bcalle bcalle
  • 21-01-2017
y - 7x = -14
7y - 49x = -2

Rewrite the first equation as "y =" so that it can be substituted into the second equation and solve for x.
y = 7x - 14
7(7x - 14) - 49x = -2
49x - 98 - 49x = -2
-98 = -2
Since the variables cancel and the equation is not true there is no solution.
The lines are parallel and will not intersect. 
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