Question

1) 3x = 28 - x2)5x + 12 = 8x + 30Срочно​

Answer 1

Ответ:

1) x=7

2) x=-6

Пошаговое объяснение:

1) 4x=28 x=7

2) -3x=18   x=-6

Answer 2

1. To solve the equation 3x = 28 - x^2, we need to find the value(s) of x that satisfy the equation.

Step 1: Move all terms to one side of the equation to set it to zero: x^2 + 3x - 28 = 0

Step 2: Factor the quadratic equation: (x + 7)(x - 4) = 0

Step 3: Set each factor to zero and solve for x: x + 7 = 0 --> x = -7 x - 4 = 0 --> x = 4

The solutions to the equation are x = -7 and x = 4.

2. To solve the equation 5x + 12 = 8x + 30, we need to find the value of x that makes the equation true.

Step 1: Move all the x terms to one side of the equation and the constant terms to the other side: 5x - 8x = 30 - 12

Step 2: Simplify the equation: -3x = 18

Step 3: Divide by -3 to solve for x: x = 18 / -3 x = -6

The solution to the equation is x = -6.