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atroni [7]
3 years ago
13

Solve for (y)(x) x-y=1 1/2x+y=5

Mathematics
2 answers:
Ludmilka [50]3 years ago
7 0
Add them equations to cacncel y

x-y=1
<span>1/2x+y=5 +</span>
3/2x+0y=6

3/2x=6
times 2/3 both sides
x=4

sub back
x-y=1
4-y=1
-y=-3
y=3

x=4
y=3

the orderd pair for the intersection would be (4,3)
(y)(x)=(3)(4)=12


TEA [102]3 years ago
6 0
Using addition

x-y+1/2x+y=1+5
x+1/2x+0y=6
3/2x=6
\frac{3}{2}x=6
3x=12
x=4

Using the value of x
x-y=1
4-y=1
y=3

With x as 4 and y as 3, their product is 12
And can be written as (4,3)
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