Question

_ + 81 = 9(7+9)
Fill in the blank to complete the equation

Answer 1

63

Explanation:

First solve the right side of the equation by expanding the parenthesis using the BODMAS and Distributive Law:

9(7 + 9) = 9(16)

= 144

Now equate the above answer to the left side of the equation:

—- + 81 = 144
—- = 144 - 81

= 63

Answer 2

Explanation:

To solve the equation, we can simplify the expression on the right side of the equation first:

9(7+9) = 9(16) = 144

Then, we can rewrite the equation as:

x + 81 = 144

To solve for x, we can subtract 81 from both sides:

x + 81 - 81 = 144 - 81

x = 63

Therefore, the completed equation is:

63 + 81 = 9(7+9)