Solve the system using elimination. write the solution as an ordered pair. (1 point) show your work for full credit! (2 points)

5x + 4y = 1
-3x + 4y = -7

(1,-1)

Step-by-step explanation:

- You can multiply the first equation by -1

- Add the equations.

- Solve for x, as following:

- Substitute the value of x into any of the original equations and then you must solve for y:

Therefore, the solution is: (1,-1)

inal answer is x=1 and y=-1.

Step-by-step explanation:

Given equations are:

5x+4y=1 ...(i)

and

-3x+4y=-7 ...(ii)

Now we need to solve this by elimination method.

Subtract equation (ii) from (i)

5x+4y -(-3x+4y) =1 -(-7)

5x+4y +3x-4y =1+7

8x =8

x=1

Now plug x=1 into equation (i)

5x+4y=1

5(1)+4y=1

5+4y=1

4y=1-5

4y=-4

y=-1

Hence final answer is x=1 and y=-1.

62.5 boards

Step-by-step explanation:

8/1=500/x

cross product

1*500=8*x

500=8x

x=500/8

x=62.5