SOLUTION: Solve this equation, one is simultaneous, one is linear x^2 + y^2 = 9 x + y = 3

Question 1009260: Solve this equation, one is simultaneous, one is linear
x^2 + y^2 = 9
x + y = 3
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

.....eq.1
.....eq.2
-----------------------------
start with
.....eq.2 and solve for
.........eq.2a
substitute it in eq.1

.....eq.1 and solve for

solutions:
if =>
if =>
go back to eq.2a, substitute
.........eq.2a if

.........eq.2a if

so, we have two points of intersection of given lines and they are:
(,) and (,)

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