M + 3n = 7 solve for m

m = 7 - 3n

Step-by-step explanation:

m + 3n = 7

subtract 3n from both sides

m + 3n = 7

    - 3n       -3n

m = 7 - 3n

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

noncoplanar points are points that do not lie on the same line.