Answer :
in this type of equation, we will first add the equations and then subtract them. \\
[tex]141x+93y=189 \\
93x+141y=45\\
=234x+234y= 234\\
x+y=1\\
141x+93y=189\\
93x+141y=45\\
=48x-48y=144\\
x-y=3
solving the two equations,
x+y=1 \\
x-y=3 \\
x=2
y=-1[/tex] \\
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