Question

half of a number, decreased by 10 is -13. in equation form pls
i will give first and best brainliest

Answer 1

1/2x-10=13

+10 +10

1/2x=23

*2 *2

x=46

Answer 2

Answer:

$\dfrac{1}{2}x-10=-13$

Step-by-step explanation:

Let x be the unknown number.

Given:

• Half of a number  →  ¹/₂x
• Decreased by 10  →  -10
• Is -13  →  = -13

Therefore, the equation is:

$\boxed{\dfrac{1}{2}x-10=-13}$

Solving for x

To solve, add 10 to both sides:

$\implies \dfrac{1}{2}x-10+10=-13+10$

$\implies \dfrac{1}{2}x=-3$

Multiply both sides by 2:

$\implies 2 \cdot \dfrac{1}{2}x=2 \cdot -3$

$\implies x=-6$