Respuesta :

KurdishPotato

Answer:

83°

Step-by-step explanation:

m<ABC = 180° because that's a straight line

42 + 5x + 7x + 6 = 180°

12x + 48 = 180

12x = 180 - 48

12x = 132 divide by 12

x = 11

CBE = 7x + 6 ➡ 7×11 + 6 = 83°

GilliamKathren

Answer:

132/7

Step-by-step explanation:

180 = 42 + 7x + 6

180 = 7x + 42 +6

180 = 7x + 48

(180 - 48) = 7x (+ 48 - 48)

132 = 7x

7x = 132

7x / 7 = 132 / 7

x = 132/7

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