Question

HELP FAST!!!

What is the value of x? Enter your answer in the box. x = Triangle with angles labeled x minus 4 degrees, 3 x degrees, and 100 degrees.

Answer 1

all triangles have angles that will add up to 180 degrees so you create an equation adding all three angles is equal to 180.

$(x-4) +3x + 100 =180 combine like terms 4x + 96 = 180 subtract 96 from both sides 4x = 84 divide both sides by 4 x = 21$