Question

What is the solution to this equation? 5x - 4 + 3x = 36   A. x = 5   B. x = 16   C. x = 20   D. x = 4

Answer 1

Let's do this in steps, show your work!   | Make sure to ask questions!

#1. Simplify 5x - 4 + 3 to 8x - 4.

8x - 4 = 36.

#2. Add 4 to both sides.

8x = 36 + 4.

#3. Simplify 36 + 4 to 40.

8x = 40.

#4. Divide both sides by 8.

x = 40/8.  <------ It turned into a fraction because it's easier to not divide a decimal.

#5. Simplify 40/8 to 5.  

x = 5.

Therefore, x = 5.