Using substitution, which number from the set {15, 25, 35, 55} makes the equation y+15=40 true?(1 point)
Responses
35
35
55
55
25
25
15
15
To find which number from the set makes the equation true, we substitute each number into the equation and check if it satisfies the equation.
1) For 15:
15 + 15 = 30, which is not equal to 40.
2) For 25:
25 + 15 = 40, which is equal to 40. Therefore, 25 makes the equation true.
3) For 35:
35 + 15 = 50, which is not equal to 40.
4) For 55:
55 + 15 = 70, which is not equal to 40.
Therefore, the number 25 from the set {15, 25, 35, 55} makes the equation y + 15 = 40 true.