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MA_775_DIABLO [31]
3 years ago
13

X=2y-6;y=3x-7substitution to solve systems of equations​

Mathematics
1 answer:
Debora [2.8K]3 years ago
4 0
<h2>Answer:</h2>

As you said, we can solve this system for y by using <em><u>substitution</u></em>.

x = 2y - 6\\y = 3x - 7\\\\y = 3(2y - 6) - 7\\\\y = 6y - 18 - 7\\\\y = 6y - 25\\\\-5y = -25\\\\y = 5

Now, using what we got for y, we plug it into one of the original equations to solve for x.

x = 2(5) - 6\\\\x = 10 - 6\\\\x = 4

Now we have the solution of this system.

(4, 5)

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