Question

(x-1)-7=0,5*(1+6x)=? ​

Answer 1

Ответ:

х-1-7=0,5+3х

х-8=0,5+3х

х-3х=0,5+8

-2х=8,5

х=-4,25

Answer 2

Let's solve the equations step by step:

1. (x - 1) - 7 = 0

To solve this equation, we can start by simplifying it:

x - 1 - 7 = 0

Combine like terms:

x - 8 = 0

Now, we can isolate x by adding 8 to both sides of the equation:

x - 8 + 8 = 0 + 8

x = 8

So the solution to the first equation is x = 8.

2. 5 * (1 + 6x) = ?

Let's substitute the value of x we found into this equation:

5 * (1 + 6 * 8) = ?

Perform the multiplication inside the parentheses first:

5 * (1 + 48) = ?

5 * 49 = ?

Now, calculate the final result:

245

Therefore, the value of 5 * (1 + 6x) is 245.