4 years ago

-4y=-20x+40 y+10=5x

Mathematics

1 answer:

mart [117]4 years ago

8 0

Answer:

infinitely many solutions

Step-by-step explanation:

We want to find solution to the system:

-4y=-20x+40

y+10=5x

We make y the subject in the second equation to get;

y=5x-10

We substitute y=5x-10 into the top equation to get:

$- 4(5x - 10) = - 20x + 40$

We expand to obtain;

$- 20x + 40= - 20x + 40$

This implies that:

$40 = 40$

Therefore the system has infinitely many solutions.

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