Answer:
Yes, your answers are correct.
Example of 3 below:
Explanation:
5x + 2 = 27
use inverse operations and the properties of equalities. First, subtract 2 from both sides of the equation to isolate the term with x:
5x + 2 - 2 = 27 - 2
5x = 25
Next, use the inverse operation of multiplication to isolate x. divide both sides of the equation by 5 to undo the multiplication:
5x ÷ 5 = 25 ÷ 5
x = 5
You used the inverse operations of subtraction and division, as well as the property of equality that states that we can perform the same operation on both sides of an equation and still have an equivalent equation.