Question

Decide whether x = 4 is a solution of 3x + 4 = 16​

Answer 1

Answer:

x = 4 is a solution of 3x + 4 = 16​.

Step-by-step explanation:

To decide whether x = 4 is a solution of 3x + 4 = 16​

put x = 4 in 3x + 4 = 16​

3x + 4 = 16

LHS = 3x + 4

= 3 (4) + 4

= 12 + 4

= 16

= RHS

3x + 4 = 16

So, x = 4 is a solution of 3x + 4 = 16​.

Verification:

3x + 4 = 16

3x = 16 - 4

3x = 12

x = 12/3

x = 4

Answer 2

Answer:

∴  $x=4$ is the solution of equation $3x+4=16$.

Step-by-step explanation:

• In context with question asked,
• We have to check whether $x=4$ is a solution of $3x+4=16$.
• As we know that, the solution of a given equation is correct if it satisfies the equation.
• Here, the given equation is,

           $3x+4=16$

• Put $x=4$ in the given equation, we get

          ∴ $3\times 4+4=16$

               ∴ $12+4=16$

                   ∴ $16=16$

                ∴ LHS = RHS

• The given value of $x$ satisfies the equation.

• ∴  $x=4$ is the solution of equation $3x+4=16$.