It is 77
1/2 (3x + 1 + x - 3) = 1/2 (4x - 2) = 2x - 1
76
3 3/4
It evaluates to: 12+(-1)+(-1)+3 = 13
3y+1
3+1+3+3+3+4+3+4+1+1+1+1+1+1+5+6 =41 Every operation is addition so all the adding can happen in one step.
1
(2x + 5) + (5x - 6) + (-4x + 2) = 3x + 1 There are three items so average = (3x + 1)/3 = x + 1/3
The average of 0.3 and 3 and 30 is 11.1
It is 77
It is 123.99
Average = (sum of the items) / (number of items)Sum of the items = (3x + 1) + (x - 3) = 4x - 2Number of items = 2Average = (2x - 1)
it equals 62
1/2 (3x + 1 + x - 3) = 1/2 (4x - 2) = 2x - 1
76
3 3/4