Question

3(1-х)-5(х+2)=1-4х подробное решение

Answer 1

3-3x-5x-10=1-4x

-3x-5x+4x=1-3+10

-4x=8

x= -2

Answer 2

Решение:

1) раскрываем скобки и ставим знаки умножения: 3*1-3*х-5*х+2*5=1-4х;

2)умножаем все это дело и распределяем числа с "х" и обычные числа: -3х-5х+4х=-3+10+1; объясняю почему "+" 10, т.к перед скобкой стоял знак минус в самой скобке знаки поменялись: -х-2, после перемещения на другую сторону знак стал положительным.

3) -4х=8; делим на х

Ответ: -2

Answer 3

To solve the equation 3(1-x) - 5(x+2) = 1 - 4x, we'll follow these steps:

Step 1: Distribute the coefficients inside the parentheses. Step 2: Simplify the expression on both sides of the equation. Step 3: Collect the x terms on one side and the constant terms on the other side. Step 4: Solve for x.

Let's start solving the equation:

Step 1: Distribute the coefficients inside the parentheses. 3(1 - x) - 5(x + 2) = 1 - 4x

Expanding the terms inside the parentheses: 3 * 1 - 3 * x - 5 * x - 5 * 2 = 1 - 4x

Step 2: Simplify the expression on both sides of the equation. 3 - 3x - 5x - 10 = 1 - 4x

Step 3: Collect the x terms on one side and the constant terms on the other side. To do this, we'll move all terms containing x to the left side and constants to the right side:

(-3x - 5x) + 4x = 1 - 3 - 10

Combine like terms: -8x = -12

Step 4: Solve for x. To solve for x, we'll divide both sides of the equation by -8:

x = (-12) / (-8)

x = 3/2

So, the solution to the equation is x = 3/2 or 1.5.