SOLUTION: Solve using cross multiplication:1.x-y+2=0,7x+9y=130 2.4x-y=5,5y-4x=7

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Question 1083847: Solve using cross multiplication:1.x-y+2=0,7x+9y=130 2.4x-y=5,5y-4x=7

Answer by ikleyn(52914) About Me  (Show Source):
You can put this solution on YOUR website!
.
For your info:

For solving systems of linear equations, there are Substitution method, Elimination method and Determinant method /(or the Cramer's rule).

But there is NO cross-multiplication method.