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OpenStudy (anonymous):
x is a variable such that if 20% of it is added to its fifth the result is equal to 12 subtracted from seven tenths of x. Find x.
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OpenStudy (anonymous):
need help
OpenStudy (anonymous):
2/5x = 7/10x - 12 4/10x = 7/10x - 120/10 4x = 7x - 120 3x = 120 x = 40
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
thank you
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