Question

-10+d=7 please help im l)umb

Answer 1

d=17
remove the 10 from the left side to make the d by itself
10+7= 17 duh

Answer 2

d = 17

Explanation:

Algebraic equations can be solved using properties of equality.

Properties of Equality

The properties of equality explain how one can manipulate an equation while maintaining equality. Most of the properties state that if you do the same thing to both sides, then the equation is still true.

For example, the addition property of equality states that if you add the same number to both sides, then the equation is still true.

Solving for d

Now that we know the addition property of equality, we can solve for d. First, rewrite the equation.

• -10+d=7

Now, add 10 to both sides.

• d = 17

We know that we can add 10 to both sides because the addition property of equality tells us that this maintains equality.

Checking Your Answer

To make sure you got the answer right, you can plug the answer you got back into the equation. This means that you should plug in 17 for d.

• -10 + 17 = 7
• 7 = 7

Since this statement is true, we know that 17 is the correct answer.