Question

-(х/2-2)-0,3х+7х+(х/2-0,2х)=0​

Answer 1

Ответ:

-(х/2-2)-3/10х+7х+3/10х=0

-х/2+2+7х=0

13/2х+2=0

13х+4=0

13х=-4

х=-4/13

Answer 2

Let's solve the given equation step by step:

• First, simplify the equation by combining like terms:

  -(x/2 - 2) - 0.3x + 7x + (x/2 - 0.2x) = 0

  Distribute the negative sign in the first term and combine the x/2 terms:

  -x/2 + 2 - 0.3x + 7x + x/2 - 0.2x = 0

  Now combine the x terms:

  6.5x + 2 = 0

• Next, isolate x on one side of the equation by subtracting 2 from both sides:

  6.5x = -2

• Finally, solve for x by dividing both sides by 6.5:

  x = -2 / 6.5

Now, calculate the value of x:

x ≈ -0.3077

So, the solution to the given equation is approximately x = -0.3077.