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

where do the lines cross

User Rhyono
by
8.3k points

1 Answer

3 votes
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


User Muppet
by
8.0k points
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