anonymous
  • anonymous
What is the solution of the system?
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
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hartnn
  • hartnn
i believe u have to use matrix method.
jiteshmeghwal9
  • jiteshmeghwal9
@hartnn is this matrix ??

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hartnn
  • hartnn
depending on her previous questions, i think, the topic she is learning is MATRIX
anonymous
  • anonymous
my unit is called linear systems. so i dont know . lol
jiteshmeghwal9
  • jiteshmeghwal9
4x-4y=-40 -4x+7y=55 ----------- 3y=10 y=10/3 Put this value in one of the equation to gt x if this is linear equation in two variables.
anonymous
  • anonymous
whats x though?
campbell_st
  • campbell_st
not quite if you add the 2 equations 4x - 4y = -40 -4x + 7y = 55 -------------- 3y = 15 that might make for an easier answer
campbell_st
  • campbell_st
just solve for y then substitute into either equation to find x

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