Question

10 – {4a – (7 - a - 5) – (5a - 1 + a)}
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Answer 1

Answer:

10-{4a-(2-a)-(6a-1)}

10-{4a-2+a-6a+1}

10-{-2a+a-1}

10-{-a-1}

10+a+1

11+a

Answer 2

Answer:

a=-11

Step-by-step explanation:

10 – {4a – (7 - a - 5) – (5a - 1 + a)}

10-(4a-7+a+5-5a+1-a

10-4a+7-a-5+5a-1+a

11+a

a=-11