Question

-3-3(3-2х)=1 -2(1/3х+7)=-21

Answer 1

Ответ: 1) х=$\frac{13}{6}$=$2\frac{1}{6}$

2) х=10,5

Пошаговое объяснение:

1) -3-3(3-2х)=1

-3-9+6х=1

6х=1+9+3

х=$\frac{13}{6}$=$2\frac{1}{6}$

2) -2($\frac{1}{3}$х+7)=-21

$\frac{-2}{3}$х-14=-21

$\frac{-2}{3}$х=-21+14

-2х=-7·3

-2x=-21

x=$\frac{-21}{-2}$

x=10,5

Answer 2

Let's solve the given equations step by step.

Equation 1: -3 - 3(3 - 2x) = 1

Step 1: Distribute the -3 into the parentheses: -3 - 3 * 3 + 3 * 2x = 1

Step 2: Perform the operations inside the parentheses: -3 - 9 + 6x = 1

Step 3: Combine like terms: 6x - 12 = 1

Step 4: Add 12 to both sides to isolate the variable term: 6x = 13

Step 5: Finally, divide both sides by 6 to find the value of x: x = 13 / 6

Now, let's move on to the second equation:

Equation 2: -2(1/3x + 7) = -21

Step 1: Distribute the -2 into the parentheses: -2 * (1/3x) - 2 * 7 = -21

Step 2: Simplify the equation inside the parentheses: -2/3x - 14 = -21

Step 3: Add 14 to both sides to isolate the variable term: -2/3x = -21 + 14 -2/3x = -7

Step 4: To solve for x, multiply both sides by the reciprocal of (-2/3), which is (-3/2): x = (-7) * (-3/2)

Step 5: Simplify the right side: x = 21/2

So, the solution to the second equation is: x = 21/2.

To summarize:

• The solution to the first equation is x = 13/6.
• The solution to the second equation is x = 21/2.