Verified Answer :

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. 
\(\frac{4.5x}{4.5}\) = \(\frac{20}{4.5}\)


Answer 
x=4.444444

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