Question

The multipliers of this system of equations have been determined to create opposite terms of the x-variable. 8 (negative three-fourths x + four-fifths y = 14) right-arrow negative 6 x + StartFraction 32 Over 5 EndFraction y = 112. 3 (2 x + StartFraction 7 Over 10 EndFraction y = negative 9) right-arrow 6 x + StartFraction 21 Over 10 EndFraction y = negative 27 What is the value of y? –10 –8 8 10

Answer 1

Its D, But i know im late bc you put this in 2020

Explanation:

Answer 2

The correct option is option (d)

The value of y is 10.

Explanation:

Given equations are

`8(-\frac 35x+\frac 45 y=14)`

`\Rightarrow - 6x+(32)/(5) y=112` .........(1)

`3(2x+(7)/(10)y=-9)`

`\Rightarrow 6x+(21)/(10)y=-21` .............(2)

Adding Equation (1) and (2)

`- 6x+(32)/(5) y=112`

`6x+(21)/(10)y=-21`

____________

`(32)/(5)y+(21)/(10)y=112-21`

`\Rightarrow (64+21)/(10)y=85`

`\Rightarrow (85)/(10)y=85`

`\Rightarrow y=(85*10 )/(85)`

`\Rightarrow y=10`

The value of y is 10.