Expression 3(x+5) can be written as . What are the numbers to be filled in the box?
3,5
1,5
1,15
3,15
The expression is 3(x + 5) = 3 × x + 3 × 5 = 3x + 15
Thus, expression 3(x + 5) can be written as 3x + 15.
Expression 3(x+5) can be written as (_)x + (_).
The linear equation 2x - 5 = 3x + 4 can be written as