Question

1) 3x-2=5 б) 5x-2x+3=6 в) 8-3\5x=14 Г) 2x-3=4 д) 6x-2x+1=5 Е) 5 -2/5x=11 /-эт дроби. номер один объяснее все .пж 2) НАЙДИТЕ ЗНАЧ ВЫРАЖЕНИЯ> 3x-2 при x= 1 ЦЕЛАЯ 2/3 5X-1 ПРИ X=1 ЦЕЛОЙ 1/5 ТОЛЬКО ПЖ ПИСАТЬ ТАК .Если х = ...... ,то = решение 3)зависит ли от значения х значение выражения. 4(3х-2)-2(4х-1)-(4х-9)? объяснение. зараннее спасибо.

Answer 1

3х-2=5; 3х=5-2; 3х=7; х=... Дальше сама думай)

Answer 2

Task 1: Solve the Equations

a) 3x - 2 = 5

To solve this equation, we can isolate the variable x by adding 2 to both sides of the equation:

3x - 2 + 2 = 5 + 2

This simplifies to:

3x = 7

Finally, divide both sides of the equation by 3 to solve for x:

x = 7/3

b) 5x - 2x + 3 = 6

To solve this equation, we can combine like terms:

3x + 3 = 6

Next, subtract 3 from both sides of the equation:

3x + 3 - 3 = 6 - 3

This simplifies to:

3x = 3

Finally, divide both sides of the equation by 3 to solve for x:

x = 1

c) 8 - (3/5)x = 14

To solve this equation, we can isolate the variable x by subtracting 8 from both sides of the equation:

8 - 8 - (3/5)x = 14 - 8

This simplifies to:

-(3/5)x = 6

Next, multiply both sides of the equation by -5/3 to solve for x:

x = -30/3

Simplifying further:

x = -10

d) 2x - 3 = 4

To solve this equation, we can isolate the variable x by adding 3 to both sides of the equation:

2x - 3 + 3 = 4 + 3

This simplifies to:

2x = 7

Finally, divide both sides of the equation by 2 to solve for x:

x = 7/2

e) 5 - 2/(5x) = 11

To solve this equation, we can isolate the variable x by subtracting 5 from both sides of the equation:

5 - 5 - 2/(5x) = 11 - 5

This simplifies to:

-2/(5x) = 6

Next, multiply both sides of the equation by -5/2 to solve for x:

x = -5/12

Task 2: Evaluate Expressions

a) Evaluate 3x - 2 when x = 1 (as a whole number)

To evaluate this expression, substitute x = 1 into the expression:

3(1) - 2

This simplifies to:

3 - 2 = 1

b) Evaluate 5x - 1 when x = 1 (as a whole number)

To evaluate this expression, substitute x = 1 into the expression:

5(1) - 1

This simplifies to:

5 - 1 = 4

Task 3: Determine if an Expression Depends on the Value of x

Consider the expression: 4(3x - 2) - 2(4x - 1) - (4x - 9)

To determine if the value of the expression depends on the value of x, we can simplify the expression and see if x cancels out.

Expanding the expression:

12x - 8 - 8x + 2 - 4x + 9

Combining like terms:

(12x - 8x - 4x) + (-8 + 2 + 9)

Simplifying further:

0x + 3 = 3

Since x does not appear in the simplified expression, we can conclude that the value of the expression does not depend on the value of x.

I hope this helps! Let me know if you have any further questions.