X+X*2.25%*80%=5090等于多少
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X+X*2.25%*80%=5090等于多少
![X+X*2.25%*80%=5090等于多少](/uploads/image/z/19742619-3-9.jpg?t=X%2BX%2A2.25%25%2A80%25%EF%BC%9D5090%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91)
x + x*2.25%*80% = 5090
x + 0.0225x*0.8 = 5090
x + 0.018x = 5090
1.018x = 5090
x = 5090 ÷ 1.018
x = 5000
x + 0.0225x*0.8 = 5090
x + 0.018x = 5090
1.018x = 5090
x = 5090 ÷ 1.018
x = 5000