Question

Solve this equation. Explain your reasoning.
0.5x + 0.5 = 4.5​

Answer 1

x = 9

Explanation:

Firstly, you have to balance the equation.

Start by subtracting 0.5 from both sides. Remember, when solving algebraic equations such as this one, you use reverse PEMDAS, or SADMEP.

Now, you have 0.5x = 4.5

Now, for the next step: division. Divide both sides by 0.5, or in other words, multiply by 2.

x = 9

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Answer 2

x = 9

Explanation:

5 9

(x - (—— • x)) - — = 0

10 2

Simplify 1/2

1 9

(x - (— • x)) - — = 0

2 2

x = 9