Hailey M.

asked • 12/17/12

Solve by using substitution or elimination.x=5y-113x+20y=30

use either substitution or elimination. im in algebra 2

2 Answers By Expert Tutors

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Anthony P. answered • 01/04/13

Experienced tutor in earth sciences and basic math to trigonometry

Hailey M.

this helped so much. thank you

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01/07/13

Anthony P.

You're very welcome!

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01/08/13

Sean J.

Check one typo used twice: 30 + 33 = 63, not 66.
66 divided by 35 is exactly 1.8
So Y would be 1.8, and X would be -2.
Same process, but somewhat cleaner results.
 
Very clear explanation, though.  Both ways.
-sj
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12/11/13

Joseph B. answered • 12/17/12

Math tutor for all grades! I've been doing this for six years!

Hailey M.

two separate. sorry

x-5y=-11

3x+20y=30

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01/07/13

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