Question

7+5x-3x=21 equation step by step​

Answer 1

• 7+2x=21
• 2x=21-7
• 2x=14
• x=2/14
• x=7

Answer 2

Answer:

The value of the equation will be 7.

Step-by-step explanation:

In the context question asked that,

We have to find the value of the given equation,  

Given that,

$7+5x-3x=21$

Here we will use the transposition method,

Combining the like terms,

=> $7+2x=21$

Now, transposing 7 on the right side:

=> $2x=21-7$

Subtract the numbers,

=> $2x = 14$

Divide both sides by 2,

=> $x = 7$

Hence, the required solution is 7.