To determine the crossing point of the 2 lines, we have to
solve the system formed from their equations:
2x+y=5
(1)
-3x+4y=9 (2)
We'll
multiply the relation (1) by 3 and the relation (2), by 2, and after that, we'll add (1)
to (2). We'll obtain:
6x+3y-6x+8y = 15 +
18
After reducing similar terms, we'll
get:
11y = 33
y =
33/11
y=3
We'll
substitute y by 3, into the relation (1):
2x+3 =
5
2x = 5-3
2x =
2
x =
1
The crossing point is A
(1,3).
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