Question

4. If 5x + 4 = x – 20, then the value of x is
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Answer 1

Answer:

Step 1: 5X = 20

Step 2: We are keeping ‘X’ in the LHS (Left Hand Side) and taking the numeral to the RHS(Right Hand Side) then we get the equation as

X=20/5

Step 3: In the RHS we have to divide 20 by 5 which will go 4 times in 5 (i.e) 5*4=20. Hence in this Step the Equation will be

X = 4

In the Above Step we have found the value of X as X=4.

Now let us substitute the value in the given equation.

Equation is : 5(x)=20 which means 5(4) = 20

20 = 20 which means(LHS=RHS)

Hence Proved.

Answer: X=4

Answer 2

5x-x=-20-4

4x=-24

x=-24/4

x=-6