solve the following system of equations using elimination
4x - 2y =8
3x - 9y = -54
To use Elimination method we need to make coefficients of one variable equal and opposite.
Here we can choose X to do this, so :
3(4x - 2y = 8) => 12X - 6Y = 24
-4(3x - 9y = -54) => -12X +36Y = 216
Now we add corresponding sides of both equations and we get => 30Y = 240 => Y = 8
Now we substitute Y=8 in any one equation and we get => 4X - 2(8) = 8 => X = 6
So the solution is ( 6,8)
Hope this helps.
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