Question

-3x+9=0 -5x+6=0 5x-3=-10x

Answer 1

1) -3x + 9 = 0

-3x = -9

x = -9 : (-3)

x = 3

2) -5x + 6 = 0

-5x = 6

x = 6 : (-5)

x = -1. 2 или -1 1/5

3) 5x - 3 = -10x

5x + 10x = 3

15x = 3

x = 3 : 15

x = 0.2 или 1/5

Answer 2

To solve each of these equations, we need to find the value of "x" that satisfies the equation. Let's solve them one by one:

1. -3x + 9 = 0

To solve this equation, we want to isolate "x" on one side of the equation.

Step 1: Subtract 9 from both sides to move the constant term to the right side: -3x = -9

Step 2: Divide both sides by -3 to solve for "x": x = -9 / -3 x = 3

So, the solution for the first equation is x = 3.

2. -5x + 6 = 0

Step 1: Subtract 6 from both sides: -5x = -6

Step 2: Divide both sides by -5 to find "x": x = -6 / -5 x = 6/5

The solution for the second equation is x = 6/5 or 1.2.

3. 5x - 3 = -10x

Step 1: To solve this equation, we want to get all the "x" terms on one side and the constant term on the other side.

Step 2: Add 10x to both sides: 5x + 10x - 3 = 0

Step 3: Combine the "x" terms on the left side: 15x - 3 = 0

Step 4: Add 3 to both sides to move the constant term to the right side: 15x = 3

Step 5: Divide both sides by 15 to solve for "x": x = 3 / 15 x = 1/5

So, the solution for the third equation is x = 1/5 or 0.2.

To summarize:

1. -3x + 9 = 0 ==> x = 3
2. -5x + 6 = 0 ==> x = 6/5 or 1.2
3. 5x - 3 = -10x ==> x = 1/5 or 0.2