1.
x + 2y = 5
3x + 6y = 10
2.
x + y + z = 50
2x + 5y = 8z = 4
6x + 7y + 9z = 7
3.
x + 2y = 5
1.2x + y = 10
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In general, a linear equation CANNOT be made to go through three points. That will only happen if the three points are collinear and in that case, the equation of the line will only require two points.
View all Sir William Rowan Hamilton invented the linear equation in 1843.
There are three kinds:the equations have a unique solutionthe equations have no solutionthe equations have infinitely many solutions.
A linear equation in three variable.
It is a linear equation in three variables which is equivalent to a linear equation in two variables. This is because 3 + e = 2.3f +e - 7g is equivalent to 3 = 2.3f -7g