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If two angles 2x+10°and 3x+20°are supplementary find x ​
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If two angles 2x+10°and 3x+20°are supplementary find x ​

User Ilya
by
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1 Answer

9 votes

Answer:

x = 30

Explanation:

Supplementary angles sum to 180° , then

2x + 10 + 3x + 20 = 180 , that is

5x + 30 = 180 ( subtract 30 from both sides )

5x = 150 ( divide both sides by 5 )

x = 30

User Wei Hu
by
8.2k points
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