Question

0-6a + 0-2a = 0.4a + 8​

Answer 1

Answer:

0.6a + 0.2a = 0.4a + 8

(6/10)a + (2/10)a = (4/10)a + 8/1

(6a + 2a)/10 = 4a + 80 ⇒ 6a + 2a = 4a + 80

⇒ 6a + 2a – 4a = 80 ⇒ 4a = 80

⇒ a = 80/4 =20

∴ a = 20

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