Question

1) 10 - 4x + 3 = 9x - 2 - 6x + 9 - 7x + 6; 2) 9x +4-5x = 8+ 7x – 9 - 3x + 5;3) 6(1,2x – 0,5) - 1,3x = 5,9x – 3;4) 8(1,3x + 0,25) - 6,6x = 3,8x + 2.​

Answer 1

Ответ:

я не сильно уверенна, но как-то так

Answer 2

Let's solve each of the given equations step by step:

1. 10 - 4x + 3 = 9x - 2 - 6x + 9 - 7x + 6

Simplify both sides of the equation: 13 - 4x = 9x + 13 - 7x + 6

Combine like terms on both sides: 13 - 4x = 2x + 19

Move all the x terms to one side and the constants to the other side: -4x - 2x = 19 - 13

Simplify: -6x = 6

Divide both sides by -6: x = -1

So the solution to the equation is x = -1.

2. 9x + 4 - 5x = 8 + 7x - 9 - 3x + 5

Simplify both sides of the equation: 9x - 5x + 4 = 7x - 3x + 8 - 9 + 5

Combine like terms on both sides: 4x + 4 = 4x + 4

Subtract 4x from both sides: 4 = 4

This equation has no variable term, which means it is an identity. It is true for all values of x. Therefore, there is no specific solution to this equation.

3. 6(1.2x - 0.5) - 1.3x = 5.9x - 3

Distribute the 6 on the left side of the equation: 7.2x - 3 - 1.3x = 5.9x - 3

Combine like terms on both sides: 5.9x - 3 = 5.9x - 3

Subtract 5.9x from both sides: -3 = -3

This equation has no variable term, which means it is an identity. It is true for all values of x. Therefore, there is no specific solution to this equation.

4. 8(1.3x + 0.25) - 6.6x = 3.8x + 2

Distribute the 8 on the left side of the equation: 10.4x + 2 - 6.6x = 3.8x + 2

Combine like terms on both sides: 3.8x + 2 = 3.8x + 2

Subtract 3.8x from both sides: 2 = 2

This equation has no variable term, which means it is an identity. It is true for all values of x. Therefore, there is no specific solution to this equation.