Questions: Question Completion Status:
QUESTION 1
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.
2/7 x=6 ; multiply by
6
-2/7
7/2
7
QUESTION 2
Solve and check the equation.
Transcript text: Question Completion Status:
QUESTION 1
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just $x$ on the left side.
$\frac{2}{7} x=6 ;$ multiply by
6
$-\frac{2}{7}$
$\frac{7}{2}$
7
QUESTION 2
Solve and check the equation.
Solution
Solution Steps
Solution Approach
For Question 1, to isolate \( x \) on the left side of the equation \(\frac{2}{7} x = 6\), we need to multiply both sides by the reciprocal of \(\frac{2}{7}\), which is \(\frac{7}{2}\).
For Question 2, solve the equation by isolating the variable on one side and then check the solution by substituting it back into the original equation.
Step 1: Solve for \( x \) in Question 1
Given the equation
\[
\frac{2}{7} x = 6
\]
we multiply both sides by the reciprocal of \(\frac{2}{7}\), which is \(\frac{7}{2}\):
\[
x = 6 \cdot \frac{7}{2} = 21
\]
Step 2: Solve for \( x \) in Question 2
Consider the equation
\[
3x + 4 = 10
\]
To isolate \( x \), we first subtract 4 from both sides:
\[
3x = 10 - 4
\]
This simplifies to:
\[
3x = 6
\]
Next, we divide both sides by 3:
\[
x = \frac{6}{3} = 2
\]
Step 3: Check the Solution for Question 2
To verify our solution, we substitute \( x = 2 \) back into the original equation:
\[
3(2) + 4 = 6 + 4 = 10
\]
Since both sides are equal, the solution is confirmed.