Asked by simultaneous

13x+11y=70
11x+13y=74
Answered by drwls
Change that to:
143x + 121y = 770
143x + 169y = 962

Subtract the first equation from the second, thereby eliminating x.

48y = 192
y = 4

Then compute x using either of your equations.
Answered by Kabilan
Super
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