Question

solve the equation 3x ÷ 4 -3 = 12​

Answer 1

Answer:

3x÷4-3=12

3x÷4=12+3

3x÷4 = 15

3x= 15×4

3x = 60

x=60/3

x= 20

Answer 2

Answer:

=> x = 20

Step-by-step explanation:

Given that:-

$\frac{3x}{4}-3=12$

To find:- The value of the expression:

Here we will use the transposition method.

As we have,

=> $\frac{3x}{4}-3=12$

First of all, we have a common denominator, we get

=> $\frac{3x}{4}+\frac{4(-3)}{4}=12$

Combining the fraction, we get

=> $\frac{3x+4(-3)}{4}=12$

Multiply the numbers, we get

=> $\frac{3x-12}{4}=12$

For eliminating the denominator, we have to multiply both sides by $4$:

=> $3x-12=12\times 4$

=> $3x-12=48$

Add $12$ on both sides, we get

=> $3x-12+12=48+12$

=> $3x=60$

Divide both sides by $3$, we get

=> $x = 20$

Hence, the required solution is 20.