Question

B) (x-7) - (2x + 9) = -13 ответ ​

Answer 1

To solve the equation (x-7) - (2x + 9) = -13, we can simplify the expression on the left side by removing the parentheses and combining like terms:

x - 7 - 2x - 9 = -13

Now, let's combine the x terms and the constant terms separately:

(x - 2x) + (-7 - 9) = -13

Simplifying further:

(-x) + (-16) = -13

Now, let's isolate the x term by adding 16 to both sides of the equation:

(-x) + (-16) + 16 = -13 + 16

Simplifying:

-x = 3

To solve for x, we can multiply both sides of the equation by -1:

(-1)(-x) = (-1)(3)

Simplifying:

x = -3

Therefore, the solution to the equation (x-7) - (2x + 9) = -13 is x = -3.