Question

If a+b = 180 and a =2B then a =

Answer 1

Answer:

a+b=180

2b+b=180

3b=180

b=180/3

b=60

a=2b

a=2×60

a=120

Step-by-step explanation:

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Answer 2

Hi friend

$a + b = 180$

$a = 2b$

Substitute equation 2 in equation 1

$2b + b = 180$

$3b = 180$

$b = 60$

Substitute value of b in equation 1

$a + 60 = 180$

$a = 120$

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