reecedstceklein
28.01.2020 •
Mathematics
How do you solve for the expression 3/a=9/a+2
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Ответ:
Multiply both sides by to get rid of the fractions.
3 = 9 + 2a >> 2a + 9 = 3 (just flipped it but its still the same)
Subtract 9 from both sides to get only the variable, 2a.
2a + 9 - 9 = 3 - 9 >> 2a = -12
Simplify.
a =
a = -6!
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