How do you find the solution of the system of equations #x+y=7 # and #xy=3#?
Solving by elimination and substitution:
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To find the solution of the system of equations x + y = 7 and x  y = 3, you can use the method of substitution or elimination. Here, we'll use the method of elimination.

Add the two equations together to eliminate the variable y: (x + y) + (x  y) = 7 + (3) Simplify: 2x = 4

Solve for x: x = 2

Substitute the value of x into one of the original equations to solve for y: 2 + y = 7 Subtract 2 from both sides: y = 5
So, the solution to the system of equations is x = 2 and y = 5.
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When evaluating a onesided 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 onesided 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 onesided 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 onesided 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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