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xitskaylee23

  • 2 years ago

What is the solution of the system?

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  1. xitskaylee23
    • 2 years ago
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  2. hartnn
    • 2 years ago
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    i believe u have to use matrix method.

  3. jiteshmeghwal9
    • 2 years ago
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    @hartnn is this matrix ??

  4. hartnn
    • 2 years ago
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    depending on her previous questions, i think, the topic she is learning is MATRIX

  5. xitskaylee23
    • 2 years ago
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    my unit is called linear systems. so i dont know . lol

  6. jiteshmeghwal9
    • 2 years ago
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    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.

  7. xitskaylee23
    • 2 years ago
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    whats x though?

  8. campbell_st
    • 2 years ago
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    not quite if you add the 2 equations 4x - 4y = -40 -4x + 7y = 55 -------------- 3y = 15 that might make for an easier answer

  9. campbell_st
    • 2 years ago
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    just solve for y then substitute into either equation to find x

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