Question

Q1. Solve:
20 = 6 + 4 (a +3)

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Answer 1

Answer: 1/2

Step-by-step explanation:

20 = 6 + 4(a+3)

20-6=4a+12

14=4a+12

14-12=4a

2 = 4a

a = 1/2

Answer 2

Answer:

$20 = 6 + 4(a + 3) \\ 20 = 6 + 4a + 12 \\ 20 = 18 + 4a \\ 20 - 18 = 4a \\ 2 = 4a \\ a = 2 \div 4 \\ a = 1 \div 2$