Question

1) 4x+2x-20=0 2) 2×4x=6x+3×9x

Answer 1

1) 4х+2х-20=0

6х=20

Х= 3 1/3

Ответ: 3 1/3

2) 2*4х=6х+3*9х

8х=6х+27х

8х=33х

8х-33х=0

-25х=0

Ответ:0

Answer 2

To solve the given equations, let's start with each one:

1. 4x + 2x - 20 = 0

Combine like terms: 6x - 20 = 0

Now, isolate the variable x by adding 20 to both sides: 6x = 20

Finally, divide both sides by 6 to find the value of x: x = 20 / 6 x ≈ 3.33

So the solution to the first equation is approximately x = 3.33.

2. 2×4x = 6x + 3×9x

Let's solve this equation step by step:

First, perform the operations on both sides: 8x = 6x + 27x

Now, combine like terms: 8x = 33x

To isolate x on one side, we'll subtract 33x from both sides: 8x - 33x = 0

Simplify further: -25x = 0

Finally, solve for x by dividing both sides by -25: x = 0

So the solution to the second equation is x = 0.