2(x + 7) + 3x = 12
the first step in solving this equation for x uses the property.

a) identity
b) associative
c) commutative
d) distributive

D) Distributive

Step-by-step explanation:

2(x + 7) + 3x = 12

You need to put the equation in its simplest form.

That is why you need to distribute first.

Outcome:

2x + 14 + 3x = 12

x coordinate is none

step-by-step explanation:

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a