Question

(2x+1)+3x=16 ; 23-(x+5)=13

Answer 1

Ответ:

1)3

2)5

Пошаговое объяснение:

2х+1+3х=16

5х=15

х=3

23-х-5=13

-х=-5

х=5

Answer 2

Let's solve the given equations step by step:

Equation 1: (2x + 1) + 3x = 16

First, let's simplify the equation by combining like terms:

2x + 1 + 3x = 16 5x + 1 = 16

Next, isolate the variable term by subtracting 1 from both sides:

5x + 1 - 1 = 16 - 1 5x = 15

Divide both sides of the equation by 5 to solve for x:

5x/5 = 15/5 x = 3

Therefore, the solution to Equation 1 is x = 3.

Now let's move on to Equation 2: 23 - (x + 5) = 13

Start by removing the parentheses by distributing the negative sign:

23 - x - 5 = 13

Combine like terms:

18 - x = 13

To isolate the variable term, subtract 18 from both sides:

18 - x - 18 = 13 - 18 -x = -5

Multiply both sides of the equation by -1 to solve for x:

(-1)(-x) = (-1)(-5) x = 5

Therefore, the solution to Equation 2 is x = 5.

In summary: Equation 1: x = 3 Equation 2: x = 5