Answer:
heres an example of substitution in a world problem. hope this helps on some other problens
Answer:
I think 2600 passwords are possible
Answer:
i
Step-by-step explanation:
dontkow
5m+2m+2 = 23
7m=21 , So:: m=21:7
m=3
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Solve the equation:

Reduce the fractions at the left side so that they have the same denominator:

Numerators must be equal:

I hope this helps. =)
Tags: <em>rational equation fraction solution algebra</em>