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katrin [286]
2 years ago
12

X - Y = 11 2x + Y = 19 where do the lines cross

Mathematics
1 answer:
katen-ka-za [31]2 years ago
4 0
Just solve the equations:
<span>A) X - Y = 11
B) 2x + Y = 19
Multiply A) by -2
</span>
<span>A) -2X  +2Y = -22 then add to B)
</span><span>B) 2x + Y = 19
3Y = -3
Y=-1
</span>
<span>A) X - -1 = 11
x = 10

</span>
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