Three supplementary angles are ∠ABC=(x−6)°, ∠CBD=(4x−14)°, and ∠DBE=5x°. What is the equation to solve for x?(1 point)
A.10 x minus 20 equals 180
B.9x−20=180
C.x−20=180
D.10x+20=180
For the connexus quick check
10x°−20°=180°
9x°+135°=180°.
165
110
100
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Three angles have measures that add to 180°. They have the following angle measures: m∠ABC=(x−6)°, m∠CBD=(4x−14)°, and m∠DBE=5x°. What is the equation to solve for x? Answer 10x°−20°=180°
Two supplementary angles have the following measures: m∠ABC=135° and m∠CBD=9x°. What is the equation to solve for x? A= 9x°+135°=180
Use facts about supplementary angles to solve the following problem. Two angles are supplementary and have measures m∠ABC=15° and m∠CBD=x°. What is the value of m∠CBD? A= 165
Two angles are supplementary and have measures m∠QRS=(x+40)° and m∠SRT=x°. What is the measure of
A=110
Three angles measures add to 180° and have the following measures: m∠ACB=(x+15)° , m∠BCD=(x+48)°, and m∠DCE=13°. What is the measure of ∠BCD. A= 100
A= is the answer 100%
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Three angles have measures that add to 180°
180
°
. They have the following angle measures: m∠ABC=(x−6)° , m∠CBD=(4x−14)° , and m∠DBE=5x° . What is the equation to solve for x ?(1 point)
Responses

10x°+20°=180°
10 x plus 20 equals 180

9x°−20°=180°
9 x minus 20 equals 180

x°−20°=180°
x minus 20 equals 180

10x°−20°=180°
10 x minus 20 equals 180