Lines
ab
and
cd
(if present in the picture) are straight lines. find x. give reasons to justify your solutions.

x=45

Step-by-step explanation:

Statements        |          Reasons

90+x+5x=360    |           A full rotation is 360 degrees.

90+6x=360        |           I simplified (combined like terms).

6x=360-90         |           I used subtraction property (minus 90 on both sides).

6x=270               |           I simplified (combined like terms).

x=270/6              |           I used division property (divided 6 on both sides).

x=45                   |            I simplified (performed the division).

99

step-by-step explanation:

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3