Question

_2(x+3) =8 and 9/5 = 7/15​

Answer 1

Step-by-step explanation:

$a)2(x + 3) = 8 \\ 2x + 6 = 8 \\ 2x = 8 - 6 \\ 2x = 2 \\ x = 2 \div 2 \\ x = 1 \\ b)9 \div 5 = 7 \div 15 \\ 9 = 7 \times 5 \div 15 \\ = 7 \times 9 \div 3 \\ = 7 \times 3 \\ = 21$