manitull123
manitull123
29-01-2017
Mathematics
contestada
what is the answer too 3x-4+20=55
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awesomesauceaid
awesomesauceaid
29-01-2017
the answer is 13 move over the constants and divided by 3
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Аноним
Аноним
29-01-2017
1st: subtract 20 from both sides: 3x-4+20-20=55-20
2nd: simplify: 3x-4=35
3rd: add 4 to both sides: 3x-4+4=35+4
4th: divide 3 from both sides: 3x/3=39/3
5th: x=13
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