The first step is to substitute "9", where be is in the equation. Then, subtracting 9 from each side fo the equation gives you 3a = 45. Finally, by dividing each side by 3, your result will be a=15.
The value of a in the equation 3 a + b = 54 when b = 9 is 15. This is found by substituting b into the equation, simplifying, and then solving for a .
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Penjelasan:Della mendorong benda dengan gaya 50 n yang membentuk sudut 6 terhadap permukaan bangun datar jika komponen gaya pada suhu horizontal adalah 40 n Tentukan sudut 0