write the missing numbers to.make the sentence true example 7+9=_______+7?
make a guess and I will come back and look
if 7 cows + 9 cows fill a field
then
9 cows + how many cows
fill the field?
ah, here we go:
http://coolmath.com/prealgebra/06-properties/01-properties-commutative-addition-01.htm
To find the missing number in the sentence "7 + 9 = _______ + 7," we can use basic arithmetic and algebraic reasoning.
Let's break down the equation step by step:
1. The original equation is: 7 + 9 = _______ + 7.
2. Start by solving the left side of the equation: 7 + 9 = 16.
3. Now, we have: 16 = _______ + 7.
4. To find the missing number, we need to isolate the variable on one side of the equation.
5. In this case, we want to find the number that, when added to 7, gives us 16. Let's call this missing number "x."
6. The equation becomes: 16 = x + 7.
7. To isolate the "x" variable, we subtract 7 from both sides of the equation: 16 - 7 = x + 7 - 7.
8. Simplifying, we have: 9 = x.
So, the missing number that completes the equation "7 + 9 = _______ + 7" is 9.