If r(x) = 3x – 1 and s(x) = 2x + 1, which expression is equivalent to (r/s)(6)

r(6)/s(6) = 3(6) -1

              2(6) +1

Step-by-step explanation:

r(x) = 3x-1

Let x=6

r(6) = 3(6) -1

s(x) = 2x+1

Let x=6

s(6) = 2(6) +1

r(6)/s(6) = 3(6) -1

              2(6) +1

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