Question

What is the value of b if,$(3,1)$ is a solution for the equation: $6x+by=25$ ?

• A. $\frac{19}{3}$
• B. $7$
• C. $6$
• D. $8$

Answer 1

The correct option is B

$7$

The solution to an equation is the set of values of $x$ and $y$ that satisfies the given equation

If we substitute the values of $x$ and $y$ in the given equation, we get:
$6\left(3\right)+b\left(1\right)=25$
$\Rightarrow 18+b=25$
$\Rightarrow b=7$

Therefore, $b$ will be equal to $7$.