91影视

Understanding how to isolate the variable is crucial when solving linear equations. In the original exercise, we have the equation: \( h + 5.91 = 2.4 \).
The first step to solving this is to get the variable 'h' by itself on one side of the equation. To do this, we need to remove the number added to 'h'.
Here, 5.91 is added to 'h', so we'll subtract 5.91 from both sides. This action removes the 5.91 from the left side of the equation, helping us isolate 'h'.
Always remember, whatever operation you perform on one side of an equation, you must also perform on the other side to maintain equality. Therefore:
\[ h + 5.91 - 5.91 = 2.4 - 5.91 \]
By completing this step, the equation now reads: \[ h = 2.4 - 5.91 \].

When solving an equation, it's essential to maintain equality. This means that changes you make to one side of the equation must be made to the other side as well. Think of the equation like a balanced scale.
For example, in our equation \[ h + 5.91 = 2.4 \], we aim to make the left side equal to the right side while isolating 'h'.
To achieve this, we subtract 5.91 from both sides to keep the balance:
\[ h + 5.91 - 5.91 = 2.4 - 5.91 \].
By maintaining equality through every step, we ensure that the relationship between the variable 'h' and the constants remains consistent.

Subtraction is a fundamental operation used when solving linear equations. In our original problem, we subtracted the same value from both sides of the equation. This action is crucial in helping us isolate the variable.
After we subtract 5.91 from both sides, our equation becomes:
\[ h = 2.4 - 5.91 \]
Now we perform the actual subtraction. Here鈥檚 how to do it step-by-step:

• Start by aligning the decimal points of 2.4 and 5.91.
• You may add a zero to 2.4 to make 2.40 for easier subtraction.
• Subtract as usual, borrowing if necessary.

This gives us:
\[ 2.40 - 5.91 = -3.51 \]
So, the value of 'h' is \ -3.51 \
By clearly understanding each subtraction step, we can accurately solve the equation.