Question

19.5-(x+9.5)=4.8 решите 5.1+х+4.9=13.5 решите 16.8-(х+6.8)=4.6 решите

Answer 1

19.5-(x+9.5)=4.8

19.5-x-9.5=4.8

-x=4.8-19.5+9.5

-x=-5.2

x=-5.2:(-1)

x=5.2

otvet:x=5.2

5.1+x+4.9=13.5

x=13.5-5.1-4.9

x=3.5

otvet:x=3.5

16.8-(x+6.8)=4.6

16.8-x-6.8=4.6

-x=4.6-16.8+6.8

-x=-5.4

x=-5.4:(-1)

x=5.4

otvet:x=5.4

Answer 2

Let's solve each equation step by step:

1. $19.5 - (x + 9.5) = 4.8$:

   First, distribute the negative sign on the left side:

   $19.5 - x - 9.5 = 4.8$

   Combine like terms:

   $10 - x = 4.8$

   Now, isolate $x$ by subtracting 10 from both sides:

   $-x = -5.2$

   Finally, multiply both sides by -1 to solve for $x$:

   $x = 5.2$

2. $5.1 + x + 4.9 = 13.5$:

   Combine like terms on the left side:

   $10 + x = 13.5$

   Now, isolate $x$ by subtracting 10 from both sides:

   $x = 3.5$

3. $16.8 - (x + 6.8) = 4.6$:

   First, distribute the negative sign on the left side:

   $16.8 - x - 6.8 = 4.6$

   Combine like terms:

   $10 - x = 4.6$

   Now, isolate $x$ by subtracting 10 from both sides:

   $-x = -5.4$

   Finally, multiply both sides by -1 to solve for $x$:

   $x = 5.4$

So, the solutions are $x = 5.2$ for the first equation, $x = 3.5$ for the second equation, and $x = 5.4$ for the third equation.