Question

А) b-8b. б) 15x+3y-8x+3y. в) 14b-(3a-7b)

Answer 1

A)-7b
b)7x+6y
c)21b-3a

Answer 2

б] 15x + 3y - 8x + 3y = 7x +9y В] 14b - (3a - 7b) = 21b - 3a

Answer 3

Let's simplify each expression:

А) b - 8b:

When you subtract b from 8b, you get:

8b - b = 7b

So the simplified expression is 7b.

б) 15x + 3y - 8x + 3y:

When you combine like terms, which are terms with the same variable, you get:

(15x - 8x) + (3y + 3y) = 7x + 6y

So the simplified expression is 7x + 6y.

в) 14b - (3a - 7b):

To simplify this expression, you need to distribute the negative sign to the terms inside the parentheses:

14b - 3a + 7b

Now, combine like terms:

(14b + 7b) - 3a = 21b - 3a

So the simplified expression is 21b - 3a.