alinakayy alinakayy

15-12-2016
Mathematics

Answered

which of the following is a solution to the system

2x-2y=8 3x+2y=22

Verified Answer :

Redbaron Redbaron

15-12-2016

X=6 and Y=2. These complete both equations.

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apologiabiology apologiabiology

15-12-2016

we can eliminate y terms by adding the equations

2x-2y=8
3x+2y=22 +
5x+0y=30

5x=30
divide both sides by 5
x=6

sub back

2x-2y=8
2(6)-2y=8
12-2y=8
minus 12 both sides
-2y=-4
divide both sides by -2
y=2

x=6
y=2

the solution in (x,y) form is (6,2)

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