Ineed to find the equation, the x value and angles abc and gfh.

Angles ABC and GFH are a pair of alternate exterior angles of these two parallel lines cut by a transversal. This means they are congruent (properties of two parallel lines cut by a transversal).

Set them equal to each other to find x.

10x + 20 = 12x

Subtract 10x from both sides.

20 = 2x

Divide both sides by 2.

10 = x

To find the measures of angles ABC and GFH, substitute 10 for x in their angle values accordingly and solve.

10x + 20

10(10) + 20

100 + 20

120

12x

12(10)

120

x = 10; m∠ABC = 120; m∠GFH = 120

well first make sure that you are black. then rob a gas station and the kill the attendant

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.