Question

А) х+(х+4)=22б) (х-7)+х=33в) х+(х-1)=40 ​

Answer 1

а) х+х=18

2х=18

х=9

б) х-7+х=33

2х=40

х=20

в)х+х-1=40

2х=41

х=20.5

Answer 2

To solve each equation, we need to find the value of the variable "x" that satisfies the equation. Let's solve each equation step by step:

А) х + (х + 4) = 22

First, simplify the equation:

2x + 4 = 22

Now, isolate the variable "x" by moving the constant term (4) to the other side of the equation:

2x = 22 - 4

2x = 18

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

x = 18 / 2

x = 9

So, the solution for the equation is x = 9.

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б) (х - 7) + х = 33

First, simplify the equation:

2x - 7 = 33

Next, isolate the variable "x" by moving the constant term (-7) to the other side of the equation:

2x = 33 + 7

2x = 40

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

x = 40 / 2

x = 20

So, the solution for the equation is x = 20.

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в) х + (х - 1) = 40

First, simplify the equation:

2x - 1 = 40

Next, isolate the variable "x" by moving the constant term (-1) to the other side of the equation:

2x = 40 + 1

2x = 41

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

x = 41 / 2

x = 20.5

So, the solution for the equation is x = 20.5.