Question

Question:
. What number makes each equation true?
1. -36 + n = 0
2. n-(-28) = 0
3.-18-n=0​

Answer 1

1) 36 makes the equation true

2) -28 makes the equation true

3)  18 makes the equation true

Solution:

When we add or subtract or multiply or divide by same number on both sides of equation, the equation still remains true

1) -36 + n = 0

Add 36 to both sides

-36 + n + 36 = 0 + 36

n = 36

Thus 36 makes the equation true

2) n - (-28) = 0

n + 28 = 0

Subtract 28 from both sides

n + 28 - 28 = 0 - 28

n = -28

Thus -28 makes the equation true

3) -18 - n = 0

Add 18 on both sides

-18 - n + 18 = 0 + 18

-n = 18

n = -18

Thus 18 makes the equation true