PLEASE HELP ME It’s often difficult to know which method (graphing, substitution, or linear combination) is best to use when solving a system of equations. Certain methods work much more smoothly with certain systems than others. Knowing when to use each method is a useful skill for algebra.

Design a chart, flow chart, mind map, or some other visual to help you decide when to use each solution method.
Post your visual to the discussion board.

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11

haye waan ku helaay.

explanation: