Question

9a + 7a = 19 – 2a
answer please

Answer 1

Answer:

9a + 7a = 19 - 2a

16a = 19 - 2a

16a + 2a = 19

18a = 19

a = 19 / 18

Answer 2

Step-by-step explanation:

$9a + 7a = 19 - 2a \\ 16a = 19 - 2a \\ 19 = 16a + 2a \\ 18a = 19 \\ a = \frac{19}{18} \\ verify \\ 9 \times \frac{19}{18} + 7 \times \frac{19}{18} = 19 - 2 \times \frac{19}{18} \\ \frac{19}{2} + \frac{133}{18} = 19 - \frac{19}{9} \\ \frac{171 + 133}{18} = \frac{171 - 19}{9} \\ \frac{304}{18} = \frac{152}{9} \\2736 = 2736$