Solve for X. Write your answer in the form "x= " 7x + 65 - 23 =21

  x = -3

Step-by-step explanation:

Subtract 42 from both sides of the equation and simplify.

  7x +65 -23 -42 = 21 -42

  7x = -21

  x = -3 . . . . . . . . divide by 7

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: