richmath23 richmath23

25-03-2018
Mathematics

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the sun of 3 times a number and 5 is 2 times the number plus 15. what is half the number

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edyg144 edyg144

25-03-2018

3x+5=2x+I5
-5. -5
3x. =2x+10
-10 -10
3x-10=2x
-3x. -3x
-10= -1x
-1 -1
10=x

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