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13. In figure 3, AOB is a straigh line.find x and also the measure of eachangle.(5x+3)DEGREE (X-9)DEGREE |
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Answer» 5x+x +3-9=180 6x -6 =180 6(x-1)=180 x-1 =180/6 x-1= 30 x=30+1 x=31 Step-by-step EXPLANATION: |
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