Answer:
0
Step-by-step explanation:
-7=2x-7
+7 +7
0=2x
x=0
Answer:
2
Step-by-step explanation:
I think this is the anser because it went fom -5 to 5 so maybe it goes like that for the answer.
7x+4-2x-9
(7x-2x)+4-9
5x+4-9
5x-5
hope i helped^-^
Answer:
<em>The required values are a = 29°, b = 20°</em>
Step-by-step explanation:
<u>Angles and Lines</u>
The image shows two lines crossing at a point where three angles are marked: 57°, 7b-17, and 2a-1.
It can be noted that 57° and 7b-17 are linear angles whose sum is 180°:
57° + 7b - 17° = 180°
Solving for b:
7b = 180° + 17° - 57°
7b = 140°
b = 140°/7 = 20°
b = 20°
It can also be noted that 57° and 2a-1 are vertical angles (opposite angles). Vertical angles are congruent, thus:
57° = 2a - 1°
Adding 1:
2a = 58°
a = 29°
The required values are a = 29°, b = 20°
For this rectangle 2 sides are 4 units and the other 2 are 2 units long. 4+4+2+2=12 and 4 times 2= 8