Question

3x/4 +3=21
Find the value of x
Pls help this boy

Answer 1

Hey mate!!!✨✨

Here's your answer...❤❤

3x/4 + 3 = 21

3x/4 = 21 - 3

3x/4 = 18

3x = 18 × 4

3x = 72

x = 72/3

x = 24

Hope it helps you...

✌✌♥♥✨✨❤❤

Answer 2

Answer:

=> x = 24

Step-by-step explanation:

Given that:-

$\frac{3x}{4} +3=21$

To find:- The value of the expression:

Here we will use the transposition method.

As we have,

=> $\frac{3x}{4} +3=21$

First of all, we have to find the common denominator,

=> $\frac{3x}{4}+\frac{4\times 3}{4}=21$

Simplifying it further, we get

=> $\frac{3x}{4}+\frac{4\times 3}{4}=21$

=> $\frac{3x+12}{4}=21$

Now, multiply both sides by $4$ in order to eliminate the denominator:

=> $3x + 12 = 21\times 4$

Multiply the numbers, we get

=> $3x + 12 = 84$

Subtract $12$ on both sides, we get

=> $3x + 12 -12= 84-12$

=> $3x=72$

Divide both sides by $3$, we get

=> $x = 24$

Hence, the required solution is 24.