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Lexayyyyy Lexayyyyy
  • 19-05-2015
  • Mathematics
Answered

2x-y=17

X-y= 10

Using the elimination method

Verified Answer :

laurisajaneserr laurisajaneserr
  • 19-05-2015

easy just subtract 2x from each side then divide

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mecca99
mecca99 mecca99
  • 19-05-2015

2x-y=17
x-y=10

2x-y=17
-2(x-y)=-2(10)  
-2x+2y=-20
(cross out the -2x's)
-y=17
+2y=-20
y=3
(plug 3 into y to find x)
(3)-y=10
-y=7
y=-7
x=3 & y=-7


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