Solve using linear combination
3x+y=4
3x+y=5
a. (-1,7)
b. (0,4)
c. (-3,12)
d. (-3,13)

a

step-by-step explanation:

a

i dont know sorry

step-by-step explanation:

-2 is the right

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°