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4. The steps for solving [tex]$7x + 3 = 52$[/tex] are shown. Explain how each step helps solve the equation. Include the phrases, "Isolate the variable by [tex]$\qquad$[/tex]" and "Isolate the variable term by [tex]$\qquad$[/tex]" in your answers.

[tex]\[
\begin{aligned}
7x + 3 &= 52 \quad \text{Original equation} \\
7x + 3 - 3 &= 52 - 3 \quad \text{Isolate the variable term by subtracting 3 from both sides} \\
7x &= 49 \\
\frac{7x}{7} &= \frac{49}{7} \quad \text{Isolate the variable by dividing both sides by 7} \\
x &= 7
\end{aligned}
\][/tex]


Sagot :

To solve the equation [tex]\( 7x + 3 = 52 \)[/tex], we need to isolate the variable [tex]\( x \)[/tex]. Here is a step-by-step explanation of each step involved in solving this equation:

1. Original Equation:
[tex]\[ 7x + 3 = 52 \][/tex]
We start with the given equation where [tex]\( 7x \)[/tex] is multiplied by 7 and then 3 is added.

2. Isolate the variable term by subtracting 3 from both sides:
[tex]\[ 7x + 3 - 3 = 52 - 3 \][/tex]
Subtract 3 from both sides of the equation to move the constant term on the left side to the right side. This helps in isolating the variable term [tex]\( 7x \)[/tex] on the left side of the equation.

3. Simplify both sides:
[tex]\[ 7x = 49 \][/tex]
After performing the subtraction, we get [tex]\( 7x \)[/tex] on the left side and [tex]\( 49 \)[/tex] on the right side. Now, we have an equation with the variable term [tex]\( 7x \)[/tex] isolated.

4. Isolate the variable by dividing both sides by 7:
[tex]\[ \frac{7x}{7} = \frac{49}{7} \][/tex]
Divide both sides of the equation by the coefficient of [tex]\( x \)[/tex] (which is 7) to solve for [tex]\( x \)[/tex]. This step helps to isolate the variable [tex]\( x \)[/tex] by removing the coefficient.

5. Simplify both sides:
[tex]\[ x = 7 \][/tex]
Simplify the division to find the value of [tex]\( x \)[/tex]. The solution to the equation is [tex]\( x = 7 \)[/tex].

By following these steps, we successfully isolate the variable [tex]\( x \)[/tex] and solve the equation to find that [tex]\( x = 7 \)[/tex].