Answer:
The equations which are in standard form are:
\(2x+3y=-6\\x-y=5\\\)
Step-by-step explanation:
Given information
\(y=2x+5\\2x+3y=-6\\-4x+3y=12\\y=x-9\\x+3=6\\x-y=5\\\)
Now , as we know that the standard form of linear equation is:
\(ax+by=c\)
So,
only two equations are satisfying the standard form of liner equation among the given information.
So, the equations which are in standard form are:
\(2x+3y=-6\\x-y=5\\\)
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