Q. 27

# If 7x + 4 = 25, t

Given equation 7x + 4 = 25

We have to find the value of X (i.e., for what value of X the equation will be satisfied)

7x + 4 = 25

Taking 4 in L.H.S to R.H.S

(R.H.S = The part which is Right side to the equity in an equation

L.H.S = The part which is Left side to the equity in an equation)

By transferring the number to the other side of the equation. Its sign will be changed.

7x = 25 – 4

7(x) = 21

In the above statement 7 is multiplied by X

If that goes to other side it will be divides the number on other side

X = X = 3

(or)

7x + 4 = 25

Subtracting 4 on both sides of the equation

7x +4 – 4 = 25 – 4

7x = 21

Dividing X on both sides of the equation X = 3

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