Question

1) 10х +8=-22 2) - 3х+9=0 3)10х-5=8 4) 5х+3=10х 5) 5(х+7)=-10 6) 7(-3+2х)=-6х-1

Answer 1

Вот решения всех заданий

Answer 2

Let's solve the given equations one by one:

1. 10x + 8 = -22

Subtract 8 from both sides:

10x = -22 - 8 10x = -30

Divide both sides by 10:

x = -30/10 x = -3

So the solution to the equation is x = -3.

2. -3x + 9 = 0

Subtract 9 from both sides:

-3x = -9

Divide both sides by -3:

x = -9 / -3 x = 3

So the solution to the equation is x = 3.

3. 10x - 5 = 8

Add 5 to both sides:

10x = 8 + 5 10x = 13

Divide both sides by 10:

x = 13 / 10

So the solution to the equation is x = 1.3.

4. 5x + 3 = 10x

Subtract 5x from both sides:

3 = 10x - 5x 3 = 5x

Divide both sides by 5:

x = 3 / 5

So the solution to the equation is x = 0.6.

5. 5(x + 7) = -10

Distribute 5 to both terms inside the parentheses:

5x + 35 = -10

Subtract 35 from both sides:

5x = -10 - 35 5x = -45

Divide both sides by 5:

x = -45 / 5 x = -9

So the solution to the equation is x = -9.

6. 7(-3 + 2x) = -6x - 1

Distribute 7 to both terms inside the parentheses:

-21 + 14x = -6x - 1

Add 6x to both sides:

14x + 6x - 21 = -1

Combine like terms:

20x - 21 = -1

Add 21 to both sides:

20x = -1 + 21 20x = 20

Divide both sides by 20:

x = 20 / 20 x = 1

So the solution to the equation is x = 1.