Question

4,5(2a - 1,2) -3,5(4,2 + 3a) +22,1 =a= -2​

Answer 1

Ответ:

4,5(2a - 1,2) -3,5(4,2 + 3a) +22,1 =-17.8

a= -2

4.5*2*-2-1.2-3.5*4.2+3*-2+22.1

9*-2-1.2-14.7-6+22.1

-18-15.9+16.1

-33.9+16.1

-17.8

Пошаговое объяснение:

Answer 2

It seems like you have an equation that needs to be solved for the variable "a." Let's solve it step by step:

4.5(2a - 1.2) - 3.5(4.2 + 3a) + 22.1 = -2

First, distribute the numbers outside the parentheses:

(4.5 * 2a - 4.5 * 1.2) - (3.5 * 4.2 + 3.5 * 3a) + 22.1 = -2

Now, simplify each term:

9a - 5.4 - 14.7 - 10.5a + 22.1 = -2

Combine like terms:

(9a - 10.5a) + (-5.4 - 14.7 + 22.1) = -2

-1.5a + 2 = -2

Subtract 2 from both sides to isolate -1.5a:

-1.5a = -2 - 2

-1.5a = -4

Now, divide both sides by -1.5 to solve for "a":

a = (-4) / (-1.5)

a = 2.67 (rounded to two decimal places)

So, the solution for "a" is approximately 2.67.