The sum of two numbers is 19.Their difference is 5. Find the number 5

So first we were to told that the sum of 2 numbers add to 19

a+b=19(1)

and they subtract to 5

a-b=5(2)

These are two simultaneous equation and can be solved by elimination:

(1) + (2):

(a+b)+(a-b)=19+5

2a=24

a=12

12+b=19

b=7

So the two numbers are 12 and 7

g(x) is the negative form of f(x)? because whenever its the negative form it reflects its self over the x axis. idk if this is right though.

step-by-step explanation:

answer: solve 5\cdot 2^x=2405⋅2  

x

=2405, dot, 2, start superscript, x, end superscript, equals, 240.

solution

to solve for xxx, we must first isolate the exponential part. to do this, divide both sides by 555 as shown below. we do not multiply the 555 and the 222 as this goes against the order of operations!

\begin{aligned} 5\cdot 2^x& =240 2^x& =48 \\ \end{aligned}  

5⋅2  

x

2  

x

​    

=240

=48

​

step-by-step explanation: