Answers
Answer:
Solve 2x = 5
The variable is the letter on the left-hand side (LHS) of the equation. The variable is multiplied by two.
I want the x to stand alone on one side of the equation. Since the x is multiplied by 2, I need to divide on both sides by 2, in order to get the variable by itself. This is called "dividing through by 2", and it looks like this:
\small{ 2x = 5 }2x=5
\small{ \dfrac{(2x)}{2} = \dfrac{(5)}{2} }
2
(2x)
=
2
(5)
\small{ x = \dfrac{5}{2} }x=
2
5
Then the solution is:
2
5
Note: The fractional form, as displayed above, is the preferred form for answers. Unless you're told to use the decimal form, or unless the equation started out with numbers having decimal places (rather than numbers which are integers or fractions), you should expect to need to use the fractional forms for your answers.
Step-by-step explanation: