A is 10 less than 3 times Angle B Write the system of equations

 

I need help understanding system of equations. Please answer the problem, and if you have time show me how to do system of equations. Thank you in advanced for all the help you have provided.
asked Nov 28, 2012 in Algebra 2 Answers by Maddy Wylie (240 points)

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1 Answer

"suppulmentary" meen 2 angels add up tu 180 deg

a=3b-10

a+b=180

(3b-10)+b=180

4b-10=180

4b=170

b=170/4=42.5 deg
answered Nov 29, 2012 by anonymous
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