Question

who ever does these will get marked as brainliest PLZ I NEED HELP its due TODAY!!!!!!!!!!!!!!!!!!!

Answer 1

Step-by-step explanation:

3. By angle sum property

60+60+ (-12+9x)= 180

120_12 + 9x= 180

108+9x = 180

9x = 180-108

9x = 72

X=72/9

X= 8

4. By angle sum property

36+46+(2-3x) =180

84-3x =180

-3x = 180-84

-3x = 96

X= 96/-3

X= -13

5. By angle sum property

71+50+6x-1 =180

121+6x-1 =180

6x -1= 180-121

6x-1 = 59

6x=59+1

6x = 60

X = 60/6

X= 10

6. By angle sum property

45+90+8x+21 =180

135+8x+21= 180

156+8x = 180

8x = 180-156

8x = 24

X= 24/8

X= 3

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