1.

5a - 18/25 = 1.2a + 39/35​

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Answer:

5a-18/25=1.2a+39/35

(125a-18)/25=12a/10+39/35

\frac{125a - 18}{25}  =  \frac{84a + 78}{70}  \\  \frac{125a - 18}{<klux>5</klux>}  =  \frac{84a + 78}{14}  \\

14(125a-18)=5(84a+78)

1750a-252=420a+390

1750a-420a=390+252

1330a=642

a=642/1330= 0.4863



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