(1)(10+X)×4=(10+3X÷5)×5 (2)45-X=(15-X)×11

2025-03-23 19:43:27
推荐回答(1个)
回答1:

(10+x)*4=(10+3x/5)*5
40+4x=50+3x
x=(50-40)/(4-3)
=10/1
=10