Using substitution, which number from the set {15, 25, 35, 55} makes the equation y+15=40 true?(1 point)

Question

Responses

35
35

25
25

55
55

15

Answer 1

To find the number that makes the equation true, we need to substitute each number from the set into the equation and see which one satisfies the equation.

1. Substitute 15: y + 15 = 40
Subtract 15 from both sides: y = 40 - 15 = 25
The equation is not true for y = 15.

2. Substitute 25: y + 15 = 40
Subtract 15 from both sides: y = 40 - 15 = 25
The equation is true for y = 25.

3. Substitute 35: y + 15 = 40
Subtract 15 from both sides: y = 40 - 15 = 25
The equation is not true for y = 35.

4. Substitute 55: y + 15 = 40
Subtract 15 from both sides: y = 40 - 15 = 25
The equation is not true for y = 55.

The number that makes the equation true is 25.

Answer 2

the answer is correct.