9 times x is twice the sum of x and 5

9 times x is twice the sum of x and 5

9 times x:
9x

the sum of x and 5
x + 5

twice the sum of x and 5
2(x + 5)

The phrase is means equal to, so we set 9x equal to 2(x + 5)
9x = 2(x + 5)