若方程2ax-3=5x+b无解,则满足a,b应满足的条件是?
问题描述:
若方程2ax-3=5x+b无解,则满足a,b应满足的条件是?
答
2ax - 3 = 5x + b
2ax - 5x = b + 3
(2a - 5)x = b + 3
因为方程无解
所以 2a - 5 = 0 且 b + 3 ≠ 0
所以 a = 2.5 , b ≠ -3