Ac=(5x+12) and bd =8x? can somebody me to slove it

To solve this equation from the information given above, I ordered it 5x+12=8x. To solve, I subtracted 5x from each side, canceling the 5x to your left, leaving only the number 12. 8x minus 5x equals 3x. Take 3x and divide on both sides. 3x/3x cancels the 3, leaving 12/3 equals 4. Finally, x equals 4.

scientific notation is a way scientists simplify very large numbers so they can write them over and over with less hassle.  

Step-by-step explanation:

give them an example like 2000. move the decimal place to the left 3 places. then multiply the new number --2-- by ten to the power of 3.