Question

Y = –3x + 6

y = 9
What is the solution to the system of equations?

(–21, 9)
(9, –21)
(–1, 9)
(9, –1)

Answer 1

the answer is c

Explanation:

because i just took the test

Answer 2

(-1, 9)

Explanation:

given

`y = - 3x + 6 \\ and \\ y = 9 \\ then \: we \: need \: to :\ find \: x \: so \: that \: when \: plugged \\ to \: - 3x + 6 \: the \: result \: is \: 9 \\ by \: transitive \: rule \\ y = 9 = - 3x + 6 \\ 9 = - 3x + 6 \: (substract \: both \: sides \: with \: 6) \\ 3 = - 3x \: (divides \: both \: sides \: with \: - 3) \\ - 1 = x`