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11 votes
Pls use pic for info

Pls use pic for info-example-1
User Mwv
by
4.2k points

1 Answer

2 votes

Hi there! :)


\large\boxed{x = 3}

According to the exterior angle theorem, the angle ∠ADC is equal to the sum of ∠C and ∠B. Therefore:

120 = (15 + 5) + (22x + 4)

Combine like terms:

120 = 37x + 9

Subtract 9 from both sides:

111 = 37x

Divide both sides by 37:

x = 3.

User Tanzeel Ur Rahman
by
4.2k points