Equation
20=2x+2.5x
1) Simplify 20=2x+2.5x
2) Move the variable x to one side
⇒ 20=(2x+2.5x)
3) Simplify 2x+2.5x to 4.5x
⇒ 20=4.5x
4) Simplify
4.5x=20
5) Divide each side by 4.5.
[tex] \frac{4.5x}{4.5} [/tex] = [tex] \frac{20}{4.5} [/tex]
Answer
x=4.444444
