Answer:
28
Explanation:
Givens
Game 1: 30
Game 2: 18
Game 3: 28
Game 4: x
Solution
(30 + 18 + 28 + x) / 4 = 26 Multiply both sides by 4
4* (30 + 18 + 28 + x) / 4 = 26 * 4 The 4s on the left cancel
30 + 18 + 28 + x = 104 Add the 3 other numbers together
76 + x = 104 Subtract 76 from both sides.
76-76+x = 104-76 The 76s on the left disappear.
x = 28
Answer
in the next game he must score 28 points to average 26