Linear equations are equations that has one as its highest exponent
example:
1. x + y = 12
2. -6x + y= 6
to solve for x and y
you can either use elimination or substitution
in this case we use elimination
so we either eliminate x or y
lets eliminate x
we first multiply 6 on equation 1 and multiply 1 to equation 2 to cancel out x
6(x + y= 6)
1(-6x + y= 6)
it would then be
6x + 6y = 36
+
-6x + y = 6
to cancel out x we add both equations
0x + 7y= 42
so Y=6
and to find x substitute the value of x on either of the equations