Answer:
18
Step-by-step explanation:
So since the two lines are parallel, 3x is congruent to the angle to the left of 6x+18 and since the two angles together are a straight line it's equal to 180 degrees. So
6x + 18 + 3x = 180
9x + 18 = 180
9x = 162
x = 18
Answer:
35175
Step-by-step explanation:
Answer:
1. 10x + 14
2. 2x + 11y - 7
3. -10x - 11
Step-by-step explanation:
1.

2.

3.

Answer:
2/3+3/4=5/6
Step-by-step explanation: