Solve using elimination.

-7x - 5y = 5

-9x - 5y = 15

Question

Mathematics

Mohammad Glenn

27 September, 19:08

Solve using elimination.

-7x - 5y = 5

-9x - 5y = 15

+1

Answers (2)

Know the Answer?

Jocelyn Calderon · Answer 1

-7x-5y=5

- (-9x-5y) = 15 It's minus because negative times negative = positive

2x=-10

x = - 5

-7 (-5) - 5y = 5

35-5y = 5

-5y = - 30

y=6

Rocketfuel · Answer 2

Eliminate y's

multiply 2nd eqution by - 1 and add to 2nd

-7x-5y=5

9x+5y=-15 +

2x+0y=-10

2x=-10

divide 2

x=-5

sub back

-9x-5y=15

-9 (-5) - 5y=15

45-5y=15

minus 45 bot sides

-5y=-30

divide both sides by - 5

y=6

x=-5

y=6

(x, y)

(-5,6)

Solve using elimination.-7x - 5y = 5-9x - 5y = 15

Solve using elimination.

-7x - 5y = 5

-9x - 5y = 15