Question

(x-40)+(x-20)+(x/2-10)=180​

Answer 1

Answer:

x=100

Step-by-step explanation:

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Answer 2

Answer:

x = 100

Step-by-step explanation:

(x-40)+(x-20)+(x/2-10)=180

2*[(x-40)+(x-20)+(x/2-10)] = 2*180

(Multiplying by 2 on both side)

=> 2(x - 40) + 2(x - 20) + 2(x/2 - 10) = 2*180

=> 2x - 80 + 2x - 40 + x - 20 = 360

=> 5x - 140 = 360

=> 5x = 500

=> x = 500/5

=> x = 100