How to do
15-x=-2x+6

-9

Step-by-step explanation:

15-x=-2x+6

First add -2x to the other side:

15-x+2x=6

15-x=6

Subtract 15 on the other side:

15-15-x=6-15

x=-9

kk.bj.

step-by-step explanation:

.mnm.kn.kj

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh