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08-10-2020
Mathematics

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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 3x102x2045 and got x9 but I was wrong Can you help me understand what I did wrong Thank you class=

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crazyguy1 crazyguy1

08-10-2020

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

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