Classroom A had 70 students.
Classroom B had 30 students.
Classroom A sent groups of 4 students to Classroom B until both classrooms had the same number of students.
The equation shown can be used to find the number of groups that Classroom A sent to Classroom B so each classroom had the same number of students.
`70-4x=30+4x`
How many groups of did Classroom A send to Classroom B? Type your answer below.
1 answer
To solve the equation \( 70 - 4x = 30 + 4x \), we need to isolate \( x \).
Start by adding \( 4x \) to both sides:
\[ 70 - 4x + 4x = 30 + 4x + 4x \]
This simplifies to:
\[ 70 = 30 + 8x \]
Next, we subtract 30 from both sides:
\[ 70 - 30 = 30 + 8x - 30 \]
This simplifies to:
\[ 40 = 8x \]
Now, divide both sides by 8:
\[ x = \frac{40}{8} = 5 \]
Thus, Classroom A sent 5 groups of students to Classroom B.
