Question

solve the equation : 3x +9=15

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Answer 1

Answer:

$\huge\underline\bold\red{Answer}$

$3x + 9 = 15$

$3x = 15 - 9$

$3x = 6$

$x = \frac{6}{3}$

$x = 2$

Answer 2

Answer:

=> The value of x is 2.

Step-by-step explanation:

Given that:-

$3x +9=15$

To find:- The value of the expression:

Here we will use the transposition method.

We have to follow these steps:-

( i ) First of all, we have to identify the variables and the constants.

( ii ) Get the variable to one side of the equation. Maintain equation balance while calculating.

( iii ) Then solve the expression of both sides by using various mathematical operations. Simplify both sides.

As we have,

=> $3x +9=15$

Now subtract both sides by $9$, we get

=> $3x +9-9=15-9$

Simplifying it further, we get

=> $3x =6$

Divide both sides by $3$, we get

=> $x = 2$

Hence, the required solution is 2.