8x + 7x = 90 90 divided by 15 is 6 is this correct

Correct.

thanks

To solve the equation 8x + 7x = 90, you need to combine the like terms on the left side of the equation.

8x + 7x can be simplified to 15x.

So the equation becomes 15x = 90.

To find the value of x, you need to isolate x on one side of the equation. In this case, you can do that by dividing both sides of the equation by 15.

Dividing both sides by 15, you get:

(15x) / 15 = 90 / 15

Simplifying, you get:

x = 6

So the correct answer is x = 6.

Now, to check if your division of 90 by 15 is correct, you can calculate it.

Dividing 90 by 15, you get:

90 / 15 = 6

So yes, your calculation is correct.