Question

((a+(14÷7)×8)×9-((15÷5×2+(147÷3))×5=103
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Answer 1

[a + (14 : 7) × 8] × 9 - [15 : 5 × 2 + (147 : 3)] × 5 = 103

(a + 2 × 8) × 9 - (3 × 2 + 49) × 5 = 103

(a + 16) × 9 - (6 + 49) × 5 = 103

(a + 16) × 9 - 55 × 5 = 103

(a + 16) × 9 - 275 = 103

(a + 16) × 9 = 103 + 275

(a + 16) × 9 = 378

a + 16 = 378 : 9

a + 16 = 42

a = 42 - 16

a = 26