Question

Please help me!!! I suck at math :((

Answer 1

If we know that line $AB$ is equal to line $AD$, then this means that ∠$ADB$ has to be equal to ∠$ABD$ in order to form a closed triangle. All angle measures of a triangle add up to $180$°, so use the equation: $2(35) + x = 180$.

70 + x = 180

Subtract 70 from both sides to isolate x:

180 - 70 = 110

110 = x

Hope this helped.