Question

1. -2x-15y+23x+9y 2. (7-2b) +(8b-19) 3. (Y-6)-3y+12

Answer 1

Ответ:

1 -2х-15у+23х+9у=21х-6у

2 (7-2b)+(8b-19)=7-2b+8b-19=-12+6b

3 (y-6)-3у+12=у-6-3у+12=-2у+6

Answer 2

Let's simplify each of the given expressions:

1. -2x - 15y + 23x + 9y: Combine like terms with the same variables: (-2x + 23x) + (-15y + 9y) (21x) + (-6y) So, the simplified expression is 21x - 6y.

2. (7 - 2b) + (8b - 19): Combine like terms with the same variables: (7 + (-19)) + (-2b + 8b) (-12) + (6b) So, the simplified expression is -12 + 6b, which can be further simplified to 6b - 12.

3. (y - 6) - 3y + 12: First, distribute the negative sign to both terms inside the parentheses: y - 6 - 3y + 12 Now, combine like terms with the same variable (y): (y - 3y) + (-6 + 12) (-2y) + 6 So, the simplified expression is -2y + 6.