Add these and pls tell the answer
Answers
Answer:
question no. 1 ans t-8tz, 3tz-z, z-t
=(t-8tz) +(3tz-z) +(z-t)
=t-8tz+3tz-z+z-t
=-8tz+3tz
=-5tz
no. 2ans 7mn, +5, 12mn+2, 9mn-8, -2mn-3
=(-7mn+5) +(12mn+2) +(9mn-8+(2mn-3)
=-7mn+5+12mn+2+9mn-8-2mn-3
=-7mn+12mn-2mn
=-9mn+21mn+7-11
=12mn-4
q no. 3 ans: a+b-3, b-a+3, a-b+3
=a-a+a+b+b-b-3+3+3
=a-a+a+b+b-b-3+3+3
=a+b+3
q no. 4 ans: 14x+10y-12xy-13+18-7x-10y+8xy+4xy
=14x-7x+10y-10y-12xy+8xy+4xy-13+18
you can cut +10y-10y
=7x+5
q no. 5 ans: 5n-7n+3n-4m+2+2m-3mn-5
=5m-4m+2m-7n+3n+2-5-3mn
=7m-4m-7n+3n+2-5-3mn
=3m-4n-3-3mn
Answer:
1. t-8tz+3tz-z+z-t
= t-t-8tz+3tz-z-z
= 0-5tz-0
2. 7mn+5+12mn+2+9mn-8-2mn-3
= 7mn+12mn+9mn-2mn+5+2-8-3
= 19mn+9mn-2mn+5+2-11
= 28mn-2mn+7-11
= 26mn-4
3. a+b-3+b-a+3+a-b+3
= a-a+a+b+b-b-3+3+3
= 2a-a+2b-b-3+6
= a+b+3
4. 14x+10y-12xy-23+18-7x-10y+8xy+4xy
= 14x-7x+10y-10y-12xy+8xy+4xy
= 7x-0-12xy+12xy+5
= 7x-0-0+5
5. 5m-7n+3n-4m+2+2m-3mn-5
= 5m-4m+2m-7n+3n+2-5-3mn
= m+2m-4n-3-3mn
= 3m-4n-3-3mn
Hope these answers helped you