Solve each system using substitution.
4. y = 1/x + 4
x-y=8

Step-by-step explanation:

Use the slope-intercept form to find the slope and y-intercept.

Slope:  

0

y-intercept:  

To get the answer i used a graph

then i tried just evaluating the equation

Reduce the expression, if possible, by cancelling the common factors.

I got the same answer so i believe this should be your Answer

Hope this helps

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: