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PLEASE HELP 7x+3y=20 and -4x-6y=11 find the value of 3x-3y

PLEASE HELP 7x+3y=20 and -4x-6y=11 find the value of 3x-3y
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3 votes
PLEASE HELP
7x+3y=20 and -4x-6y=11 find the value of 3x-3y

User Amiram
by
8.1k points

1 Answer

4 votes

Answer:


3x-3y=31

Explanation:

Adding the equations yields
3x-3y=20+11=31.

User Won
by
8.3k points
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