Question

-(4x+7,2)+(2x+4,2)=3,5

Answer 1

-(4x+7,2)+(2x+4,2)=3,5
-4х-7,2+2х+4,2=3,5
-4х+2х=3,5+7,2-4,2
-2х=6,5
х=6,5 : (-2)
х=-3,25

Answer 2

The given equation is:

$(4x+7,2)+(2x+4,2)=3,5$

Assuming that the comma in the equation represents a decimal point, we can rewrite the equation as:

$(4x+7.2)+(2x+4.2)=3.5$

Simplifying the equation by combining like terms, we get:

$6x + 11.4 = 3.5$

Subtracting 11.4 from both sides of the equation, we get:

$6x = -7.9$

Dividing both sides by 6, we get:

$x = -\frac{7.9}{6}$

Therefore, the solution to the equation is:

$x = -1.316\overline{6}$

Note: The answer is rounded to five decimal places.