Question

1) 5x – 2(7x + 7) = 13.

Answer 1

Ответ:

х=-3

Объяснение:

5х-14х-14=13

-9х=27

х=-3

Answer 2

To solve the given equation, let's start by simplifying the left-hand side (LHS) of the equation step by step:

$5x - 2(7x + 7) = 13$.

First, distribute the -2 to both terms inside the parentheses:

$5x - 14x - 14 = 13$.

Combine like terms on the left side:

$-9x - 14 = 13$.

Next, isolate the variable $x$ by moving the constant term -14 to the right side by adding 14 to both sides:

$-9x = 27$.

Finally, solve for $x$ by dividing both sides by -9:

$x = -3$.

So, the solution to the given equation is $x = -3$.