Question

1 задание:ЗадачаВ первой канистре в 2 раза больше бензина,чем вот второй. если из каждой канистры отлить по 6 л, то в 1 канистре бензина станет в 3 раза больше,чем во второй. сколько литров бензина в каждой канистре?2 задание: Уравнениеа)9-7y=25-3yб)-2n=5.6nв)2(11-4a)=3-(5a+2)г)3(-5+c)-2(c-4)=2-7(c-1)Решите хоть одно задание,заранее спасибоо:*

Answer 1

№1

2x-6=3*(x-6)

2x-6=3x-18

2х-3х=-18+6

-х=-12

х=12л бензина-во второй.

2х=2*12=24л бензина в первой.

 

№2

а)9-7y=25-3y

-7у+3у=25-9

-4у=16

у=16:(-4)

у=-4

 

б)-2n=5.6n

n*(-2-5.6)=-7.6n

 

 

в)2(11-4a)=3-(5a+2)

22-8а=3-5а-2

-8а+5а=3-2-22

-3а=-21

а=-21:(-3)

а=7

 

г)3(-5+c)-2(c-4)=2-7(c-1)

-15+3с-2с+8=2-7с+7

3с-2с+7с=2+7+15-8

8с=16

с=16:8

с=2

Answer 2

1 задание: Let's solve the problem step by step.

Let's assume the amount of gasoline in the second canister is x liters. According to the problem, the gasoline in the first canister is twice that amount, so it would be 2x liters.

Next, we are told that if we pour 6 liters from each canister, the amount of gasoline in the first canister will be three times more than in the second canister. This means that the amount of gasoline in the first canister after pouring 6 liters would be (2x + 6) liters, and in the second canister, it would be (x - 6) liters.

According to the problem, the amount of gasoline in the first canister after pouring 6 liters is three times more than in the second canister. So we can write the equation:

2x + 6 = 3(x - 6)

Now, let's solve this equation:

2x + 6 = 3x - 18

Subtract 2x from both sides:

6 = x - 18

Add 18 to both sides:

24 = x

So, the amount of gasoline in the second canister is 24 liters. And since the amount of gasoline in the first canister is twice that amount, the amount of gasoline in the first canister is 2 * 24 = 48 liters.

Therefore, there are 48 liters of gasoline in the first canister and 24 liters of gasoline in the second canister.

2 задание: a) 9 - 7y = 25 - 3y

Let's solve this equation step by step:

First, let's simplify both sides of the equation:

9 - 7y = 25 - 3y

Next, let's combine like terms:

-7y + 3y = 25 - 9

Simplifying further:

-4y = 16

Divide both sides of the equation by -4:

y = -4

So, the solution to the equation is y = -4.

You can apply a similar approach to solve the other equations in part 2.

b) -2n = 5.6n

c) 2(11 - 4a) = 3 - (5a + 2)

d) 3(-5 + c) - 2(c - 4) = 2 - 7(c - 1)

Let me know if you need help with any specific equation.