Determine the numerical value of the triangle:
If
We have hundreds of course questions with personalized recommendations + Account 100% premium
Determine the numerical value of the triangle:
If
To solve this problem, we'll follow these steps:
Now, let's carry out these steps:
Starting with the equation .
To find , we add 9 to both sides:
Simplifying this gives us:
Therefore, the numerical value represented by is .
Looking at the multiple-choice options, we find that matches choice 3.
If we have 67 blocks in total, how many blocks will remain if we remove 5 tens and 4 ones?
When you "move" a number across the equals sign, you're actually adding or subtracting it from both sides! The shortcut is that -9 becomes +9 when moved, but the full step is adding 9 to both sides.
The triangle is just a variable like x or y! It represents an unknown number that we need to find. You can use any symbol as a variable in algebra.
Look at what's happening to your variable! If 9 is being subtracted from , then add 9 to both sides to undo it. Always do the opposite operation.
If substituting your answer doesn't work, you made an error! Go back and check your arithmetic carefully. Make sure you added the same number to both sides of the equation.
Absolutely! Whether it's addition, subtraction, multiplication, or division, always do the opposite operation to both sides to isolate your variable.
Get unlimited access to all 18 Natural Numbers around 100 questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime