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Mathematics
Cynthia Mcclain
22 August, 01:03
X - Y = 11
2x + Y = 19
where do the lines cross
+5
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Jadon
22 August, 01:13
0
Just solve the equations:
A) X - Y = 11
B) 2x + Y = 19
Multiply A) by - 2
A) - 2X + 2Y = - 22 then add to B)
B) 2x + Y = 19
3Y = - 3
Y=-1
A) X - - 1 = 11
x = 10
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