LA = 5x -5
B = 3 + 13
B
Solve for r and then find the measure of B:
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Answer:
x = 9º
∠B = 40º
Step-by-step explanation:
5x-5º = 3x+13º
[add 5 to both sides]
5x = 3x+18º
[subtract 3x from both sides]
2x = 18º
[divide each side by 2]
x = 9º
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3x+13º = 3(9º)+13º=27º+13º = 40º