Answer:
1
Step-by-step explanation:
Hello,
2x – 1 = 1 – 2x
<=> 2x-1+2x=1
<=> 4x-1=1
<=> 4x = 1+1=2
<=> x = 2/4 = 1/2
Then there is only one solution.
Thanks
Answer:
b = 34°
Step-by-step explanation:
b + 115° + 31° = 180°
b + 146° = 180
b = 180° - 146°
b = 34°
Answer:
1
Step-by-step explanation:
a)2 times 1 and then times 2 become (2+4) then 6 ÷ 6 (because 2 plus 4)
Answer:40 degrees
Step-by-step explanation: