How do you solve 0.5x +78.2 = 287?

1 Answer
May 3, 2018

Solution

Explanation:

Multiply both sides by 10
0.5x\cdot \10+78.2\cdot \10=287\cdot \10

Refine
5x+782=2870

Subtract 782 from both sides
5x+782-782=2870-782

Simplify
5x=2088

Divide both sides by 5
\frac{5x}{5}=\frac{2088}{5}

Simplify
x=\frac{2088}{5}

Final Solution
x=\frac{2088}{5} or x=417.6