Solve 2-18x-6=-7x+3+10x

-1/3

Step-by-step explanation:

2-18x-6 = -7x+3+10x

Collect like terms

2-6-3 = -7x+18x+10x

-7 = 21x

Divide both sides by the co-efficient of x

-7/21 = 21x/21

-1/3 = x

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

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!