Question

2+(х+3)=5 7-(2х-1)=4

Answer 1

2+(x+3)=5
2+x+3=5
5+x=5
x=5-5
x=0
1Пример
7-(2x-1)=4
7-2x-1=4
6-2x=4
2x=6-4
2x=2
x=1
2Пример

Answer 2

To solve the given equations, we need to find the value of the variable "x" that satisfies both equations:

1. 2 + (x + 3) = 5

First, let's simplify the left side of the equation:

2 + (x + 3) = 2 + x + 3 = x + 5

Now, the equation becomes:

x + 5 = 5

Next, isolate the variable "x" by moving 5 to the other side of the equation:

x = 5 - 5

x = 0

So, the solution for the first equation is x = 0.

2. 7 - (2x - 1) = 4

First, simplify the left side of the equation:

7 - (2x - 1) = 7 - 2x + 1 = 8 - 2x

Now, the equation becomes:

8 - 2x = 4

Next, isolate the variable "x" by moving 8 to the other side of the equation:

-2x = 4 - 8

-2x = -4

Finally, divide both sides by -2 to solve for "x":

x = (-4) / (-2)

x = 2

So, the solution for the second equation is x = 2.

Therefore, the values of "x" that satisfy both equations are x = 0 and x = 2.