Question

x+3=7 the value of y is​

Answer 1

Answer:

$x + 3 = 7$

$x = 7 - 3$

$x = 4$

here y's value is not given so it is 0.

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Answer 2

Answer:

X+3= 7

X= 7-3

X= 4

it is linear equation in one variable so here value of y is zero.