Question

1. 83,6-(x+2,705)=1,895 2. (x-15,8)+31,209=42,9

Answer 1

Ответ:

1. 79

2. 27.491

Answer 2

Let's solve each of these equations step by step:

1. $83.6 - (x + 2.705) = 1.895$

First, distribute the negative sign to the terms inside the parentheses:

$83.6 - x - 2.705 = 1.895$

Now, combine like terms on the left side by adding $83.6$ and $-2.705$:

$80.895 - x = 1.895$

Next, to isolate $x$, subtract $80.895$ from both sides of the equation:

$-x = 1.895 - 80.895$

$-x = -79.0$

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

$x = 79.0$

So, the solution to the first equation is $x = 79.0$.

2. $(x - 15.8) + 31.209 = 42.9$

First, simplify the equation by combining like terms:

$x - 15.8 + 31.209 = 42.9$

Now, add $-15.8$ and $31.209$ to simplify further:

$x + 15.409 = 42.9$

Next, to isolate $x$, subtract $15.409$ from both sides of the equation:

$x = 42.9 - 15.409$

$x = 27.491$

So, the solution to the second equation is $x = 27.491$.