4. If 5x + 4 = x – 20, then the value of x is
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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
5x-x=-20-4
4x=-24
x=-24/4
x=-6