The sum of 7 times a number and 6 is 9

x≈ - 4.71

Step-by-step explanation:

7 (x+6) = 9

Distribute the 7 into the parenthesis.

7x + 7 (6) = 9

Multiply the numbers.

7x + 42 = 9

Subtract from both sides.

7x+42 = 9

-42 - 42

Now, divide to both sides.

7x = - 33

7 7

x = - 4.71428571429

x≈ - 4.71