Question

Solve the system of equations. -5x+2y=9 y=7x Help!

Answer 1

Answer:

It doesn't make sense, i can solve this problem

Answer 2

Answer:

x = 1

y = 7

Step-by-step explanation:

Given

-5x + 2y = 9

y = 7x

Substitute 7x for y in the first equation.

We have,

-5x + 2(7x) = 9

-5x + 14x = 9

9x = 9

Divide both sides by 9

9x/9 = 9/9

x = 1

Substitute 1 for x In either of the above equations to get y.

Using the second equation,

We have

y = 7x

Therefore

y = 7 x 1

y = 7

x = 1 and

y = 7