Question

1 - 7 (4+2икс) = - 9 - 4икс

Answer 1

Ответ:

х=-1.8

Пошаговое объяснение:

1-7(4+2х)=-9-4х

1-28-14х=-9-4х

-14х+4х=-9-1+28

-10х=18

х=-1,8

Answer 2

Let's solve the equation step by step:

1 - 7(4 + 2x) = -9 - 4x

First, distribute the -7 on the left side:

1 - 28 - 14x = -9 - 4x

Next, combine the constants on both sides:

-27 - 14x = -9 - 4x

Now, let's isolate the terms with x on one side. To do that, we can move the -14x term to the right side by adding 14x to both sides:

-27 - 14x + 14x = -9 - 4x + 14x

-27 = -9 + 10x

Now, isolate the x term by moving the constant term to the left side by adding 27 to both sides:

-27 + 27 = -9 + 10x + 27

0 = 18 + 10x

Now, isolate the x term by moving the constant term to the right side by subtracting 18 from both sides:

0 - 18 = 18 + 10x - 18

-18 = 10x

Finally, solve for x by dividing both sides by 10:

x = -18/10

Simplify the fraction:

x = -9/5

So, the solution to the equation is:

x = -9/5