Question

find the value of y .Which satisfy the equation of 2y - 7= 21​

Answer 1

Answer:

$2y - 7 = 21$

$2y = 21 + 7$

$2y = 28$

$y = \frac{28}{2}$

$y = 14$

is your right answer

Answer 2

Given :

$:\implies\sf 2y - 7 = 21$

To Find :

$:\implies\sf Value \: of \: \boxed{\bf y}$

Solution :

$:\implies\sf 2y - 7 = 21$

$:\implies\sf 2y = 21 + 7$

$:\implies\sf 2y = 28$

$:\implies\sf y = \cancel{\dfrac{28}{2}}$

$:\implies\sf y = 14$

$\therefore \: \underline{\underline{\rm The \: value \: of \: y \: is \: 14}}$

Verification :

We have,

$:\implies\bf 2y - 7= 21$

Substituting the value of y we get,

$:\implies\bf 2(14) - 7 = 21$

$:\implies\bf 28 - 7 = 21$

$:\implies\bf 21 = 21$

HENCE VERIFIED