Question

By how much is 1 greater than 7x−2y+3?

Answer 1

given 2x+3y=7 ... (i)

and 3x+2y=3 ..(ii)

On subtracting (ii) from (i) we get

2x+3y−3x−2y=7−3

⟹−x+y=4

⟹x−y=−4

HENCE, the answer is −4.

Answer 2

7x - 2y + 3

7x - 2y = - 3

${x\:-\:y\:=\:\frac{-\:3}{-2\:×\:7}}$

${x\:-\:y\:=\:\frac{-\:3}{-14}}$

${x\:-\:y\:=\:\frac{3}{14}}$