Question

What value of $m$ is the solution to this equation?

$3m+8=14$

• A. $m=1$
• B. $m=2$
• C. $m=4$
• D. $m=3$

Answer 1

The correct option is B $m=2$

Equation $3m+8=14$
Check which of $m=3,m=2,m=1,$ and $m=4$ is the solution of the equation. We will put the values of $m$ one by one and check if the LHS is equal to RHS.

For $m=3$
LHS $=3\times 3+8=17$
RHS $=14$
LHS $\ne$ RHS
$m=3$ is not the solution to this equation.

For $m=2$
LHS $=3\times 2+8=14$
RHS $=14$
LHS $=$ RHS
$m=2$ is the solution to this equation.

For $m=1$
LHS $=3\times 1+8=11$
RHS $=14$
LHS $\ne$ RHS
$m=1$ is not the solution to this equation.

For $m=4$
LHS $=3\times 4+8=20$
RHS $=14$
LHS $\ne$ RHS
$m=4$ is not the solution to this equation.

Option B is correct.