Question

Solve systems of equations by elimination -9x-2y=5 -9x-2y=11

Answer 1

no solutions

Explanation:

-9x-2y=5

- (-9x-2y=11)

-9x-(-9x) - 2y-(-2y) = 5 - 11 ==> subtract the top two equations

-9x + 9x - 2y + 2y = -6 ==> subtracting by a negative number is equivalent

to adding by a positive number

(-9x + 9x) - 2y + 2y = -6

0 - 2y + 2y = -6

0 - 0 = -6

0
`\\eq` -6 ==> Hence, there is no solutions.