??? This is the same pair of equations!y=x+1
Adding the two equations eliminates x:Solve the linear systems using elimination
(6x+ 3y)+ (-6x+ 2y)= 27+ (-2)
(6x- 6x)+ (3y+ 2y)= 27- 2
Solve for y and then replace y by that number in either equation to find x.
Subtract one equation from the other:4x+3y=21
(4x+3y)- (4x-5y)= 21- 29
(4x- 4x)+ (3y-(-5y)= 21- 29
Could someone please explain substitution and elimination for me, thanks for your help.