5a - 3 - 18a + 21a = 11 + 4 × 3
Simplify both sides:
5a - 18a + 21a - 3 = 11 + 128a - 3 = 23
Add 3 to both sides:
8a = 26
Divide by 8:
a = 26 / 8a = 13 / 4
Therefore, the solution is a = 13/4.
5a - 3 - 18a + 21a = 11 + 4 × 3
Simplify both sides:
5a - 18a + 21a - 3 = 11 + 12
8a - 3 = 23
Add 3 to both sides:
8a = 26
Divide by 8:
a = 26 / 8
a = 13 / 4
Therefore, the solution is a = 13/4.