Question 1026709
.
Vertical angles are always equal.
Angle A=5x-1; Angle B=4x+10
.
Angle A=Angle B
5x-1=4x+10 . Subtract 4x from each side.
x-1=10 . Add 1 to each side.
x=11
.
Angle A=5x-1=5(11)-1=55-1=54
Angle B=4x+10=4(11)+10=44+10=54
.