Question

A) 3a-7b-6a+8bб) 3(4x+2)-6в) 10х-(3х+1)+(х-4)г) 2(2у-1)-3(у+2)

Answer 1

+-3а+1b
12x+6-6 = 12x
10x-3x-1+x-4 = 8x-5
4y-2-3y-6 = y-8

Answer 2

Let's simplify each of the given expressions:

A) 3a - 7b - 6a + 8b

Combine like terms: (3a - 6a) + (-7b + 8b) -3a + b

B) 3(4x + 2) - 6

Distribute the 3: 3 * 4x + 3 * 2 - 6 12x + 6 - 6 12x

C) 10x - (3x + 1) + (x - 4)

Remove the parentheses: 10x - 3x - 1 + x - 4

Combine like terms: (10x - 3x + x) - 1 - 4 8x - 1 - 4 8x - 5

D) 2(2y - 1) - 3(y + 2)

Distribute the 2 and -3: 2 * 2y - 2 * 1 - 3 * y - 3 * 2 4y - 2 - 3y - 6

Combine like terms: (4y - 3y) - (2 + 6) y - 2 - 6 y - 8

So, the simplified expressions are: A) -3a + b B) 12x C) 8x - 5 D) y - 8