Steps for solving 4x - 12 =20 are shown. explain how step 3 sovle the equation.

x = 8

Step-by-step explanation:

4x - 12 = 20

    +12  +12

4x       =  32

      x   =  8

i think it would be 42cm

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: