Solve linear equations

Question

7(9+6)=10[a-(5-a)]

Answer 1

7(9 + 6) = 10[a - (5 - a)]

7(15) = 10[a - (5 - a)]            P of PEMDAS

7(15) = 10[a - 5 + a]              P again with M

7(15) = 10[2a - 5]                  once more

105 = 20a - 50                       M of PEMDAS

155 = 20a                              add fifty to both sides

7.75 = a                               divide both sides by 20

Answer 2

7(9 + 6) = 10[a - (5 - a)]

63 + 42 = 10[a - 5 + a]

105 = 10[2a - 5]

105 = 20a - 50

155 = 20a

7.75 = a