Find the value of the parameter X:
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Find the value of the parameter X:
To solve the equation , follow these steps:
Therefore, the solution to the equation is .
The correct answer choice is: 3
3
\( x+7=14 \)
\( x=\text{?} \)
An equation is like a balanced scale - whatever you do to one side, you must do to the other side to keep it balanced. If you only subtract from one side, the equation becomes false!
That would give you , which makes the problem harder, not easier! Always use the inverse operation - if you see +5, subtract 5.
Look at what's being done to the variable. If it's +5, subtract 5. If it's -3, add 3. Use the opposite operation to 'undo' what's there.
Yes! You could think of it as 'what number plus 5 equals 8?' But the algebraic method with inverse operations works for all equations, even complex ones.
Go back and check your arithmetic! Make sure you subtracted correctly: . If you still get it wrong, you might have made an error in your operations.
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