Question

1) 7(x + 2) = -142) 8y = 2(5- у)3) 2(3x – 4) = 4(x - 3)​

Answer 1

Ответ:

Пошаговое объяснение:

1) 7(x + 2) = -14

7x + 14 = -14

7x = -14 - 14

7x = -28

x = -28:7

x = -4

2) 8y = 2(5- у)

8y = 10 - 2y

8y + 2y = 10

10y = 10

y = 10:10

y = 1

3) 2(3x – 4) = 4(x - 3)​

6x - 8 = 4x - 12

6x - 4x = -12 + 8

2x = -4

x = -4:2

x = -2

Answer 2

Ответ:

Смотри решение на фото

Answer 3

1) 7(x + 2) = -14

To solve this equation, we'll start by distributing the 7 to the terms inside the parentheses:

7x + 14 = -142

Next, we'll isolate the x term by moving the constant term to the other side of the equation:

7x = -142 - 14

7x = -156

Finally, we'll solve for x by dividing both sides of the equation by 7:

x = -156/7 = -22

Therefore, the solution to the equation is x = -22.

2) 8y = 2(5 - y)

Again, we'll distribute the 2 to the terms inside the parentheses:

8y = 10 - 2y

Next, we'll move all the y terms to one side of the equation and the constant term to the other side:

8y + 2y = 10

Combining like terms:

10y = 10

Finally, we'll solve for y by dividing both sides of the equation by 10:

y = 10/10 = 1

Therefore, the solution to the equation is y = 1.

3) 2(3x - 4) = 4(x - 3)

Let's start by distributing the 2 and 4 to the terms inside the parentheses:

6x - 8 = 4x - 12

Next, we'll move all the x terms to one side of the equation and the constant term to the other side:

6x - 4x = -12 + 8

2x = -4

Finally, we'll solve for x by dividing both sides of the equation by 2:

x = -4/2 = -2

Therefore, the solution to the equation is x = -2.