Question

find the value of: 18 –6 +(–15)– (–10)+20​

Answer 1

18-6-15+10+20

=48-21

=27

tip- first add all plus signs one together, then subtract all minus signs together to get accurate answer

Answer 2

Answer :-

• The value of: 18 - 6 + (-15) - (-10) + 20 is 27.

Step-by-step explanation:

To Find :-

• The value of: 18 - 6 + (-15) - (-10) + 20

Solution:

Given that,

• 18 - 6 + ( -15 ) - ( -10 ) + 20

=> 18 - 6 + ( -15 ) - ( -10 ) + 20

=> 18 - 6 - 15 - ( -10 ) + 20

=> 12 - 15 - ( -10 ) + 20

=> - 3 + 10 + 20

=> - 3 + 30

=> 27

Hence, The required number is 27.

Now, Verification

• 18 - 6 + ( -15 ) - ( -10 ) + 20 = 27

We have,

• L.H.S = 18 - 6 + ( -15 ) - ( -10 ) + 20
• R.H.S = 27

By evaluating L.H.S,

=> => 18 - 6 + ( -15 ) - ( -10 ) + 20

=> 18 - 6 - 15 - ( -10 ) + 20

=> 18 - 21 - ( -10 ) + 20

=> - 3 + 20

=> - 3 + 30

=> 27

Now,

• L.H.S = 27
• R.H.S = 27

Hence, L.H.S = R.H.S,

Hence, Verified!