What are x and y if #5x - 2y = -5# and #y - 5x = 3#?
Substituting value of y in terms of x in Eqn (1)"#,
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The solution is
We can also use elimination to solve this system of linear equations.
Rewrite Equation 2:
Add: Equation 1 + Equation 2:
graph{(5x-2y+5)(y-5x-3)=0 [-10, 10, -5, 5]}
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x = 1, y = -2
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To find the values of x and y, you can solve the given system of equations simultaneously.
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Start with the first equation: 5x - 2y = -5
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Solve for y: y = (5x + 5) / 2
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Substitute this expression for y into the second equation: (5x + 5) / 2 - 5x = 3
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Simplify and solve for x: x = -4
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Once you have the value of x, substitute it back into either of the original equations to find y. Using the first equation: 5(-4) - 2y = -5 -20 - 2y = -5 -2y = 15 y = -7.5
Therefore, the solution is x = -4 and y = -7.5.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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