Please solve this Mathematics questions, Class 8 NCERT CBSE .. If you don't know, Please don't answer, If you know, explain the answer step by step. Please help me now, its urgent, I don't have time to waste. Please friends Help me.

Please solve this Mathematics questions, Class 8 NCERT CBSE .. If yo

1.	Please solve this Mathematics questions, Class 8 NCERT CBSE .. If you don't know, Please don't answer, If you know, explain the answer step by step. Please help me now, its urgent, I don't have time to waste. Please friends Help me.
Answer» <html><body><a href="https://interviewquestions.tuteehub.com/tag/7-332378" style="font-weight:bold;" target="_blank" title="Click to know more about 7">7</a> (<a href="https://interviewquestions.tuteehub.com/tag/b-387190" style="font-weight:bold;" target="_blank" title="Click to know more about B">B</a>) <a href="https://interviewquestions.tuteehub.com/tag/x-746616" style="font-weight:bold;" target="_blank" title="Click to know more about X">X</a>/<a href="https://interviewquestions.tuteehub.com/tag/3-301577" style="font-weight:bold;" target="_blank" title="Click to know more about 3">3</a>+1-7/15 - x <a href="https://interviewquestions.tuteehub.com/tag/value-1442530" style="font-weight:bold;" target="_blank" title="Click to know more about VALUE">VALUE</a> 3</body></html>