Assuming you mean...
4x-6y = 4
-2x+7=-3y
Solving by elimination, instead of substitution...
Put x and y on the same side of the second equation
-2x + 3y = -7
Multiply the bottom equation by 2
4x - 6y = 4
2(-2x + 3y) = 2(-7) => -4x +6y = -14
Add both equations together:
0 = -10
No solution.
This is why I posted the comment about you reposting the question.
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