Question

Упростить: b-5+4b-8=          (3b-5)-(2b-9)=

Answer 1

1) 5b-13
2) 3b-5-2b+9=b+4

Answer 2

b - 5 + 4b - 8 can be simplified by combining like terms:

b - 5 + 4b - 8 = 5b - 13

So, b - 5 + 4b - 8 simplifies to 5b - 13.

Similarly, we can simplify (3b - 5) - (2b - 9) by distributing the negative sign:

(3b - 5) - (2b - 9) = 3b - 5 - 2b + 9

Again, we can combine like terms:

3b - 5 - 2b + 9 = b + 4

So, (3b - 5) - (2b - 9) simplifies to b + 4.