Question

Find the value of x
A triangle abc a=3x+10 b=4x+20 c=5x+30

Answer 1

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Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation: sides of the triangle

A+B+C=180°

A=3x+10

B=4x+20

C=5x+30

(3x+10)+(4x+20)+(5x+30)=180

12x+60=180

12x=180-60

12x=120

x=120/12

x=10