Question

1) -8×(3x-2)+5×(5x-3)=0 2) 5x+6-(3x-4)=x-3-(2x-4) 3) 3x-7=2x+3 4) 21-9x=24-12x​

Answer 1

Ответ:

1) -8×(3x-2)+5×(5x-3)=0

-24х+16+25х-15=0

х+1=0

х=-1

2) 5x+6-(3x-4)=x-3-(2x-4)

5х+6-3х+4=х-3-2х+4

5х-х+2х-3х=-6-4-3+4

3х=9

х=3

3) 3x-7=2x+3

3х-2х=7+3

х=10

4) 21-9x=24-12x

-9х+12х=-21+24

3х=3

х=1

надеюсь помогла, если отметишь лучшим буду рада

Answer 2

1) -8×(3x-2) + 5×(5x-3) = 0

To solve this equation, we'll start by using the distributive property to simplify each side of the equation:

-8×3x + 8×2 + 5×5x - 5×3 = 0

Now, we can combine like terms:

-24x + 16 + 25x - 15 = 0

Combine the x terms:

25x - 24x + 16 - 15 = 0

x + 1 = 0

Subtract 1 from both sides:

x = -1

So, the solution to the equation -8×(3x-2) + 5×(5x-3) = 0 is x = -1.

2) 5x+6-(3x-4)=x-3-(2x-4)

We'll start by simplifying each side of the equation using the distributive property:

5x + 6 - 3x + 4 = x - 3 - 2x + 4

Combine like terms:

2x + 10 = -x + 1

Add x to both sides:

3x + 10 = 1

Subtract 10 from both sides:

3x = -9

Divide by 3:

x = -3

So, the solution to the equation 5x+6-(3x-4)=x-3-(2x-4) is x = -3.

3) 3x-7=2x+3

Subtract 2x from both sides:

x - 7 = 3

Add 7 to both sides:

x = 10

So, the solution to the equation 3x-7=2x+3 is x = 10.

4) 21-9x=24-12x

Add 12x to both sides:

21 + 3x = 24

Subtract 21 from both sides:

3x = 3

Divide by 3:

x = 1

So, the solution to the equation 21-9x=24-12x is x = 1.