Please answer off photomath with step by step equations, ill you give the best a brainliest!!

v=-5

Step-by-step explanation:

step one distribute -4 through the parentheses (so -4 times v and -4 times 7 which gives you (2v + 18 = 16 -4v -28)

step two calculate the difference (16 - 28=-12) (2v + 18 = -12 -4v)

step three move variables to the left hand side and change its sign            (2v + 4v + 18=-12) move constant to the right hand side and change its sign (2v + 4v = -12 -18)

step four collect like terms ( add 2v +4v together to get 6v)(calculate the difference -12 -18 you add them because two negatives make a positive but keep the minus sign so you get -30)

step five divide both sides of the equation by 6 (6v + -30which gives you v=-5)

step six (v=-5) soultion

right

step-by-step explanation:

let's add {f(x)=x+1}f(x)=x+1 and {g(x)=2x}g(x)=2x together to make a new function.

f(x)+g(x) =(x+1)+(2x)=x+1+2x=3x+1

let's call this new function hh. so we have:

{h(x)}={f(x)}+{g(x)}{=3x+1}h(x)=f(x)+g(x)=3x+1

we can also evaluate combined functions for particular inputs. let's evaluate function hh above for x=2x=2. below are two ways of doing this.

method 1: substitute x=2x=2 into the combined function hh.

h(x)

h(2)

​    

=3x+1

=3(2)+1

=7

​ since h(x)=f(x)+g(x)h(x)=f(x)+g(x), we can also find h(2)h(2) by finding f(2) +g(2)f(2)+g(2).

first, let's find f(2)f(2):

f(x)

f(2)

​    

=x+1

=2+1

=3

​  

now, let's find g(2)g(2):

g(x)

g(2)

​    

=2x

=2⋅2

=4

​  

so f(2)+g(2)=3+4=\greend7f(2)+g(2)=3+4=7.

notice that substituting x =2x=2 directly into function hh and finding f(2) + g(2)f(2)+g(2) gave us the same answer!