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Moderate

Finding a Value from Two Equations

SATMAT-LY1JKZ

If $ 4a-3b=13 $ and $ 2a+3b=18 $, then what is the value of $ 15a $? (Calculator)

A

About $ 5.2 $

B

About $ 38.3 $

C

$ 77.5 $

D

$ 232.5 $