Question

2a - 2b = 4 ,if a = 1 then find the value of b​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

$2 \times 1 - 2b = 4 \: \: \: \: (a = 1) \\ 2 - 2b = 4 \\ - 2b = 4 - 2 \\ - 2b = 2 \\ b = - \frac{2}{2} = - 1 \\ b = - 1$

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