Question

Select the statement that best justifies the conclusion based on the given information. If x + 5 = 15, then x = 10. A) addition property of equality B)subtraction property of equality C) multiplication property of equality D)substitution

Answer 1

Answer: B) Subtraction property of equality.

Explanation:

Given the equation
`x+5=15`, you need to solve for x to find its value. Then, you need to subtract 5 from both sides of the equation.

This property is called "Subtraction property of equality" and states that, to keep the equation balanced, if you subtract a number from one side of the equation, you must subtract the same number from the other side:

If:

`a=b`

Then:

`a-c=b-c`

Applying this property:

`x+5-(5)=15-(5)\\x=10`