how to decide to wheter to add or subtract between these questions pls reply
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Answer:
Which class
then I will tell answer
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2
Answer:
a) x = 13
b) x =20
Step-by-step explanation:
a)
83+(6x+19)=180°
6x+19=180-83
6x+19=97
6x=97-19
6x=78
x=78/6
x=13
b)
DOE + DOB =180
62° + DOB = 180
DOB = 180 - 62
DOB =118
(3x+2)+DOB =180
(3x+2)= 180-118
3x+2=62
3x=62-2
3x=60
x=60/3
x=20
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