SOLUTION: Hi tutor, This is a problem I'm having trouble with. 7x-4y=17 2x-2y=8 The directions is solve by elimination by addition or subtraction. Please help!

SOLUTION: Hi tutor, This is a problem I'm having trouble with. 7x-4y=17 2x-2y=8 The directions is solve by elimination by addition or subtraction. Please help!

Algebra.Com

Question 193902This question is from textbook Basic Technical Mathematics
: Hi tutor,
This is a problem I'm having trouble with.
7x-4y=17
2x-2y=8
The directions is solve by elimination by addition or subtraction. Please help! This question is from textbook Basic Technical Mathematics

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

Multiply both sides of the 2nd equation by

Add the equations

Substitute this result in 2nd equation

Multiply both sides by

Check answer:

Multiply both sides by

You can check the 2nd equation the same way

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