Question

What is the result of subtracting the second equation from the first?

Answer 1

Answer:

The result of subtracting the second equation from the first

We Get,

$y=\frac{-7}{12}$

Step-by-step explanation:

Given:

2x+7y = -8    .................Equation( 1 )

2x−5y  = -1    .................Equation( 2 )

To Find:

What is the result of subtracting the second equation from the first

i.e Equation( 1 ) - Equation( 2 ) = ?

Solution:

Subtracting the second equation from the first means

Equation( 1 ) - Equation( 2 )

( 2x + 7y ) - ( 2x−5y  ) = -8 - ( -1 )

∴ $2x + 7y -2x+5y=-8+1\\\\2x-2x+7y+5y=-7\\0 +12y=-7\\\\y=\frac{-7}{12}$

We Get,

$y=\frac{-7}{12}$