Question

HELP PLEASE , ILL MEDAL

Determine the number of solutions for the system of equations.
2x + 8y = 6

-5x - 20y = -15



A. No Solutions
B. One Solution
C. Exactly 2 solutions
D. Infinite number of solutions

Answer 1

@welshfella

Answer 2

@coolman500

Answer 3

Hint :- multiply the first equation by 5 and the second equation by 2
what do you notice?

Answer 4

- rather multiply second by -2

Answer 5

2x * 5 -8y*5 = 6*5
10x - 40y = 30

Answer 6

sorry that's
10x + 40y = 30 (its +8y not -8y)

Answer 7

now multiply the second equation by -2

Answer 8

can you do that?

Answer 9

-5x*-2 - 20y*-2 = -15*-2

can you continue?

Answer 10

remember - * - = +

Answer 11

r u there?