Question

Срочно!!!!!Даю 25 баллов 1)39 - 7y + 17 = 3y + 16; 2)2(y-6)-3y=4y-y3)5.6x - 6 + 1, 4x = 2, 5(x - 1)4)15 - 6x = 2x - 5x - 3; 5)2(x+1,5)-2=x-36)- 0, 3(3 - x) = 0, 3x + 0, 3(5x + 2).​

Answer 1

Ответ:

Пошаговое объяснение:

1)39 - 7y + 17 = 3y + 16

-7у-3у=16-39-17

-10у=-40

у=-40:(-10)

у=4

2)2(y-6)-3y=4y-y

2у-12-3у=4у-у

2у-3у-4у+у=12

-4у=12

у=-3

3)5.6x - 6 + 1, 4x = 2, 5(x - 1)

5,6х-6+1,4х=2,5х-2,5

5,6х+1,4х-2,5х=-2,5+6

4,5х=3,5

х=35/45

х=7/9

4)15 - 6x = 2x - 5x - 3;

-6х-2х+5х=-3-15

-3х=-18

х=-18:(-3)

х=6

5)2(x+1,5)-2=x-3

2х+3-2=х-3

2х-х=-3+2-3

х=-4

6)- 0, 3(3 - x) = 0, 3x + 0, 3(5x + 2).

-0,9+0,3х=0,3х+1,5х+0,6

0,3х-0,3х-1,5х=0,6+0,9

-1,5х=1,5

х=-1

Answer 2

1) To solve the equation 39 - 7y + 17 = 3y + 16, we need to combine like terms and isolate the variable y on one side of the equation. Let's simplify the equation step by step:

Step 1: Combine like terms on both sides of the equation: 39 + 17 - 16 = 3y + 7y 56 = 10y

Step 2: Divide both sides of the equation by 10 to solve for y: 56/10 = y 5.6 = y

So, the solution to the equation is y = 5.6.

2) To solve the equation 2(y-6) - 3y = 4y - y, we will simplify the equation step by step:

Step 1: Distribute the 2 to the terms inside the parentheses: 2y - 12 - 3y = 4y - y

Step 2: Combine like terms on both sides of the equation: -y - 12 = 4y - y

Step 3: Add y to both sides of the equation to isolate the variable y: -y + y - 12 = 4y - y + y -12 = 4y

Step 4: Divide both sides of the equation by 4 to solve for y: -12/4 = 4y/4 -3 = y

Therefore, the solution to the equation is y = -3.

3) To solve the equation 5.6x - 6 + 1, 4x = 2, 5(x - 1), we will simplify the equation step by step:

Step 1: Distribute the 5 to the terms inside the parentheses: 5x - 5 = 2

Step 2: Combine like terms on both sides of the equation: 5x - 5 = 2

Step 3: Add 5 to both sides of the equation to isolate the variable x: 5x - 5 + 5 = 2 + 5 5x = 7

Step 4: Divide both sides of the equation by 5 to solve for x: 5x/5 = 7/5 x = 7/5

So, the solution to the equation is x = 7/5.

4) To solve the equation 15 - 6x = 2x - 5x - 3, we will simplify the equation step by step:

Step 1: Combine like terms on both sides of the equation: 15 - 6x = 2x - 5x - 3

Step 2: Combine like terms on both sides of the equation: 15 - 6x = -3x - 3

Step 3: Add 6x to both sides of the equation to isolate the variable x: 15 - 6x + 6x = -3x + 6x - 3 15 = 3x - 3

Step 4: Add 3 to both sides of the equation to isolate the variable x: 15 + 3 = 3x - 3 + 3 18 = 3x

Step 5: Divide both sides of the equation by 3 to solve for x: 18/3 = 3x/3 6 = x

Therefore, the solution to the equation is x = 6.

5) To solve the equation 2(x + 1.5) - 2 = x - 3(6) + 0, 3(3 + x) = 0, 3x + 0, 3(5x + 2), we will simplify the equation step by step:

Step 1: Distribute the 2 to the terms inside the parentheses: 2x + 3 - 2 = x - 18 + 0

Step 2: Combine like terms on both sides of the equation: 2x + 1 = x - 18

Step 3: Subtract x from both sides of the equation to isolate the variable x: 2x - x + 1 = x - x - 18 x + 1 = -18

Step 4: Subtract 1 from both sides of the equation to solve for x: x + 1 - 1 = -18 - 1 x = -19

Therefore, the solution to the equation is x = -19.

I hope this helps! Let me know if you have any further questions.