Question

(-2x-4)*0,1 -5(2-x)-6a-2a+(8a+n)(8x-0,5)-(0,5x-8)4-3(x-2)-xЕсли а1,5 b1-4(a-b)+2(3a-b)

Answer 1

Ответ:

Объяснение:

(-2x-4)·0,1=-0,2x-0,4

-5(2-x)=-10+5x=5x-10

-6a-2a+(8a+n)=-8a+8a+n=n

(8x-0,5)-(0,5x-8)=8x-0,5-0,5x+8=7,5x+7,5

4-3(x-2)-x=4-3x+6-x=10-4x

Видимо: a=1,5; b=1.

-4(a-b)+2(3a-b)=-4a+4b+6a-2b=2a+2b=2(a+b)=2(1,5+1)=2·2,5=5

Answer 2

Let's simplify each expression step by step:

Expression 1: (-2x-4)*0.1 - 5(2-x) - 6a - 2a + (8a+n)(8x-0.5) - (0.5x-8)*4 - 3(x-2) - x

Step 1: Simplify the expression within parentheses: (-2x-4)*0.1 = -0.2x - 0.4 5(2-x) = 10 - 5x (8a+n)(8x-0.5) = 64ax - 4ax + 8nx - 0.5n (0.5x-8)*4 = 2x - 32 3(x-2) = 3x - 6

Now we can substitute these simplified expressions back into the original expression:

-0.2x - 0.4 - 10 + 5x - 6a - 2a + 64ax - 4ax + 8nx - 0.5n - (2x - 32) - (3x - 6) - x

Step 2: Combine like terms: -0.2x + 5x - 4ax + 64ax + 2x - 3x - x - 6a - 2a + 8nx - 0.5n + 10 + 32 - 6

Step 3: Simplify the expression further: (5x + 2x - 3x - x) + (-0.2x - 4ax + 64ax) + (-6a - 2a) + (8nx) + (-0.5n) + (10 + 32 - 6)

4x + 60ax - 8a + 8nx - 0.5n + 36

Expression 2: a1.5 - b1 - 4(a-b) + 2(3a-b)

Step 1: Simplify the expression within parentheses: 4(a - b) = 4a - 4b 2(3a - b) = 6a - 2b

Now we can substitute these simplified expressions back into the original expression:

a1.5 - b1 - 4a + 4b + 6a - 2b

Step 2: Combine like terms: (4a + 6a - 4a) + (-b + 4b - 2b) + (1.5 - 1)

6a - b + 1.5

Therefore, the simplified expressions are:

Expression 1: 4x + 60ax - 8a + 8nx - 0.5n + 36 Expression 2: 6a - b + 1.5