3 times the sum of 2 decreased by x is 9
2 decreased by x:
2 - x
3 times the sum means we multiply 2 - x by 3:
3(2 - x)
The phrase is 9 means equal to, so we set 3(2 - x) equal to 9:
3(2 - x) = 9
2 decreased by x:
2 - x
3 times the sum means we multiply 2 - x by 3:
3(2 - x)
The phrase is 9 means equal to, so we set 3(2 - x) equal to 9:
3(2 - x) = 9