10-___+9=59
I think u subtract 59 by 19(10+9) which is 40
Make an equation
put a variable as the blank
10-X+9=59
You need to combine like terms (10 and 9)
19-X=59
Now you want to get the variable all by itself, so you need to get rid of 19. To get rid of 19 you need to subtract 19, make sure you do it to both sides, to keep the balance of the equation.
So you end up with
-X=40
So now you have the opposite of X = 40, what is the opposite of 40? -40
To check it, plug your answer into the equation
10-(-40)+9 = 59
Combine like terms and you have
19-(-40)=59
This is the same as 19 taking away the opposite of 40, which is the same as adding +40
19+40= 59 checked
60-10+9
To solve the equation 10-___+9=59, we need to find the value of the missing number.
To do this, we can follow the steps of solving an equation:
Step 1: Combine Like Terms
In this equation, we have three terms: 10, -___, and 9. To simplify the equation, we can combine the 10 and 9 terms, since they have the same variable. So we have:
10 + 9 - ___ = 59
Step 2: Perform Subtraction
To solve for the missing number, we need to determine its value. To isolate the missing number, we can subtract the constant term (10 + 9 = 19) from both sides of the equation:
10 + 9 - ___ - 19 = 59 - 19
10 - ___ = 40
Step 3: Solve for the Missing Number
Now, we have the equation 10 - ___ = 40. To find the value of the missing number, we need to subtract the constant term (10) from both sides of the equation:
10 - ___ - 10 = 40 - 10
-___ = 30
To find the value of -___, we can multiply both sides of the equation by -1 (to remove the negative sign in front of the missing number):
-1 * -___ = -1 * 30
___ = -30
Therefore, the missing number is -30.