Question

5) -x +3x-12=-4x 6) 9x - x =6+2x​

Answer 1

5) -х+3х-12=-4х

-х+3х+4х=12

6х=12

х=2

6) 9х-х=6+2х

9х-х-2х=6

6х=6

х=1

Answer 2

-x+3x-12=-4x

2x-12=-4x

2x+4x=12

6x=12

x=12:6

x=2

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9x-x=6+2x

8x=6+2x

8x-2x=6

6x=6

x=6:6

x=1

Answer 3

Let's solve each equation step by step:

5. -x + 3x - 12 = -4x

First, combine like terms on the left side of the equation:

(3x - x) - 12 = -4x

Now, simplify the left side:

2x - 12 = -4x

Next, add 4x to both sides of the equation to isolate the variable x:

2x - 12 + 4x = 0

Combine like terms:

6x - 12 = 0

Now, add 12 to both sides of the equation:

6x - 12 + 12 = 0 + 12

Simplify:

6x = 12

Finally, divide both sides by 6 to solve for x:

(6x) / 6 = 12 / 6

x = 2

So, the solution to the equation is x = 2.

6. 9x - x = 6 + 2x

First, combine like terms on both sides of the equation:

8x = 6 + 2x

Next, subtract 2x from both sides to isolate the variable x:

8x - 2x = 6

Simplify:

6x = 6

Now, divide both sides by 6 to solve for x:

(6x) / 6 = 6 / 6

x = 1

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