3(5x+7)-6(4-2x)expression below?

27x-3

Step-by-step explanation:

3(5x+7)-6(4-2x)

multiply the first expression

15x+21-6(4-2x)

multiply the second expression

15x+21-24+12x

put like terms together

(15x+12x) - (21-24)

add and subtract

27x-3

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

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