Question

suppose a+b=10 and the value of a increases by 1. If the sum remains the same, what must happen to the value of b?​

Answer 1

Answer:

$b$ decreases by $1$

Step-by-step explanation:

If the value of $a$ increases by $1$ and the sum remains the same, then the value of $b$ decreases by $1$.

Example:

Suppose $a=7$  and $b=3$.

$a+b = 10$

$b = 10-a$ (minus $a$ on both sides)

Now, let $a = 8$ ($a$ has increased by $1$):

$b = 10-8$

$=2$

From the comparison of the previous value of $b$ to the current value of $b$, the value of $b$ has decreased by $1$.

Hope this helps :)