Question

3х-12=3 и х +4b=-7?​

Answer 1

3х-12=3 х+4b=-7

3х=3+12 5+4b=-7

3х=15 4b=-7-5

х=15÷3 4b=-12

х=5 b=-12÷4

b=-3

Не за что)))

Answer 2

To solve the equations, let's tackle them one by one.

1. 3x - 12 = 3

To isolate the variable x, we can start by adding 12 to both sides of the equation:

3x - 12 + 12 = 3 + 12

This simplifies to:

3x = 15

Next, divide both sides of the equation by 3 to solve for x:

(3x)/3 = 15/3

This gives us:

x = 5

Therefore, the solution for the first equation is x = 5.

2. x + 4b = -7

To isolate the variable x, we can start by subtracting 4b from both sides of the equation:

x + 4b - 4b = -7 - 4b

This simplifies to:

x = -7 - 4b

Therefore, the solution for the second equation is x = -7 - 4b.

So, the solutions to the given system of equations are x = 5 and x = -7 - 4b.