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How do I solve a problem like this? I solved it like: 3x-10+2x+20=45 and got x=9 but I was wrong. Can you help me understand what I did wrong? Thank you!
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How do I solve a problem like this?

I solved it like: 3x-10+2x+20=45 and got x=9 but I was wrong. Can you help me understand what I did wrong? Thank you!

How do I solve a problem like this? I solved it like: 3x-10+2x+20=45 and got x=9 but-example-1
User Lanwen
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X=9

Explanation: 3x-10+2x+20=45 combine like terms and then you get 5x+10=45
Then subtract 10 from 45 and then divide you have 5x=35 and then divide 35 by 5 and get 7
User Usersam
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