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kostiktok
@kostiktok
July 2022
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2/5(3x +1)-5/7(x-1)=x-3
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greenpenguin001
2/5*(3*x+1)-5/7*(x-1) = x-3
2/5*3*x+2/5*1-5/7*x+5/7*1 = x-3
9/35 + 17*x/35 = x-3
17*x/35 = -144/35 + x
-18*x/35 = -144/35
x = -144/35 / (-18/35)
х=8
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Answers & Comments
2/5*3*x+2/5*1-5/7*x+5/7*1 = x-3
9/35 + 17*x/35 = x-3
17*x/35 = -144/35 + x
-18*x/35 = -144/35
x = -144/35 / (-18/35)
х=8