Question

A) 3 - x=12;6) 6x-10,2=0;b) 5x - 4,5 = 3x + 2,5; г) 2x-(6x--5)=45.​

Answer 1

Ответ:

а) x= -9

б)x= 1,7

в) x= 3,5

г)x= 6,25

Answer 2

Ответ:

а) 12-3=5

б)1,66

в)3

Пошаговое объяснение:

как то так

Answer 3

It looks like you've provided a set of equations, and it seems you want to solve for the value of 'x' in each equation. Let's go through each equation one by one:

A) 3 - x = 12: To solve for 'x', you want to isolate 'x' on one side of the equation. Start by subtracting 3 from both sides:

• x = 12 - 3
• x = 9

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

B) 6x - 10.2 = 0: To solve for 'x', add 10.2 to both sides of the equation: 6x = 10.2 Now, divide both sides by 6: x = 10.2 / 6 x ≈ 1.7

So, the solution for this equation is approximately x = 1.7.

C) 5x - 4.5 = 3x + 2.5: To solve for 'x', start by subtracting 3x from both sides: 2x - 4.5 = 2.5 Now, add 4.5 to both sides: 2x = 2.5 + 4.5 2x = 7 Finally, divide both sides by 2: x = 7 / 2 x = 3.5

So, the solution for this equation is x = 3.5.

D) 2x - (6x - (-5)) = 45: First, simplify the equation within the parentheses: 2x - (6x + 5) = 45 Distribute the negative sign: 2x - 6x - 5 = 45 Combine like terms: -4x - 5 = 45 Now, add 5 to both sides: -4x = 45 + 5 -4x = 50 Finally, divide both sides by -4: x = -50 / 4 x = -12.5

So, the solution for this equation is x = -12.5.

Please double-check the calculations, and let me know if you need any further assistance!