Question

3x3+3xa[5x4-(6x7-5)]x6+5:3=2 a=

Answer 1

3 * 3 + 3 * a [5 * 4 - (6 * 7 - 5)] * 6 + 5 : 3 = 2
9 + 3a[20 - 37] * 6 + 5 = 2 * 3
9 + 3a * (- 17) * 6 = 6 - 5
3a * (- 102) = 1 - 9
- 306a = - 8
a = 8/306
a = 4/153