The sum of fifteen and twice a number
15 + 2
15(2x)
15 + 2x
15 + x
The product of a number and 5 more than a different number
x + 5 + 3
x(5 + x)
x(5 + y)
5x + 6
Six decreased by four times a number is eight
6 - 4 = 8
6 - 4x + 8
6 - 4x = 8
4x - 6 = 8
Thirty less than five times a number is twenty.
30 - 5x = 20
5x - 30 = 20
30 - 5 + x = 20
5x - 30 + 20
subtract 26 from both sides
subtract 5 from both sides
divide by 7
add 5 to both sides
add 2 to both sides
add 15 to both sides
subtract 15 from both sides
add 15 and 2x
7
21
3
105
