Answer:
y-1=2(x+3)
y-1=2x+6
y=2x+6+1
y=2x+7
Step-by-step explanation:
According the Triangle sum theorem:
m<T + m<U + m<V =180
x + 2x + x + 80 = 180
solve: x=25
Therefore m<T = 25, m<U = 50, and m<V = 105