113k views
0 votes
One equation of a pair of dependent linear equations is -5x+7y=2.Write the second equation.

User Waldyrious
by
4.6k points

1 Answer

7 votes

Answer:

Explanation:

Any multiple of the given equation is also a dependent linear equation

From the equation

-5x+7y=2

Multiplying all through by any number, say 2

2(-5x)+2(7y)=2(2)

-10x+14y=4 is a dependent linear equation for -5x+7y=2

If you don't fancy using a multiple, you can write the gradient equation y=mx+c

-5x+7y=2

7y=5x+2

Dividing all through by 7 gives the equation as

y=5x/7 + 2/7

User Real Quick
by
4.6k points