Reese read twice as many pages Saturday night than she read Sunday night. If she read a total of 78 pages over the weekend, how many pages did Reese read Sunday night?
Supposed x is the number of pages she read on Sunday night. Then 2x will be the number of pages she read on Saturday night. The total number of pages she read is 78.
So 78 = 2x + x
78 = 3x
x = 26.
The number of pages she read on Sunday night is 26.