Question

7x-10=10x+113×(x-5)=x+3 ​

Answer 1

Ответ

7 или можно -7

Пошаговое объяснение:

7х-10=10х+11

7х-10х=11+10

-3х=21

Х=21:(-3)

Х=-7

И можно так чтобы уберат минус (-) нужна умножит (*) 1

Х= 7

Answer 2

To solve the equations, let's take them one by one:

Equation 1: 7x - 10 = 10x + 113

First, let's simplify the equation by combining like terms:

7x - 10x = 113 + 10

-3x = 123

Now, divide both sides of the equation by -3 to isolate x:

x = 123 / -3

x = -41

So the solution to Equation 1 is x = -41.

Equation 2: 3x(x - 5) = x + 3

First, let's distribute the 3x on the left side of the equation:

3x^2 - 15x = x + 3

Now, let's rearrange the equation to bring all terms to one side:

3x^2 - 15x - x - 3 = 0

Combining like terms:

3x^2 - 16x - 3 = 0

Unfortunately, this equation cannot be factored easily. You can use the quadratic formula to solve for x:

x = (-b ± √(b^2 - 4ac)) / (2a)

In this case, a = 3, b = -16, and c = -3. Plugging in these values:

x = (-(-16) ± √((-16)^2 - 4 * 3 * (-3))) / (2 * 3)

Simplifying further:

x = (16 ± √(256 + 36)) / 6

x = (16 ± √292) / 6

x = (16 ± 17.08) / 6

x ≈ 5.68 or x ≈ -0.35

So the solutions to Equation 2 are approximately x ≈ 5.68 and x ≈ -0.35.

Please note that the solutions are approximations due to the use of the quadratic formula and rounding.