xitskaylee23
What is the solution of the system?



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xitskaylee23
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hartnn
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i believe u have to use matrix method.

jiteshmeghwal9
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@hartnn is this matrix ??

hartnn
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depending on her previous questions, i think, the topic she is learning is MATRIX

xitskaylee23
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my unit is called linear systems. so i dont know . lol

jiteshmeghwal9
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4x4y=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.

xitskaylee23
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whats x though?

campbell_st
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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

campbell_st
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just solve for y then substitute into either equation to find x