Explain why 30 divided by x = 6 is the same as 30 -x-x-x-x-x-x

See below.

Step-by-step explanation:

The expression 30 / x is the same as 30 -x - x - x - x - x  because division is repeated subtraction. Division divides a number into a specified number of group sizes. 30 / x where x = 6 means divide 30 into 6 groups. Within each group will be 5.

The expression 30 - x -x -x -x-x-x has 6 groups of x where each group is size 5.

idk what the answer is but for the points

step-by-step explanation:

the first one and the second one that's the answer

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w