Question

The difference between nine times a number an 7 is -70. find that number

Answer 1

Let's assume

that number is x

now, we are given

The difference between nine times a number an 7 is -70

nine times of that number is 9x

so, we can set up equation

$9x-7=-70$

now, we can solve for x

$9x-7+7=-70+7$

$9x=-63$

$x=-7$

so, number is -7.........Answer