5×1.3+2x=15.5
5x1.3+2x=15.5怎么解? -
5×1.3+2x=15.5 先算5×1.3=6.5 即6.5+2x=15.5 2x=15.5–6.5 2x=9 x=4.5
解答如下:5x1.3+2x=15.5 6.5+2x=15.5 2x=15.5-6.5 2x=9 x=9/2 x=4.5
5×1.3+2x=15.5 先算5×1.3=6.5 即6.5+2x=15.5 2x=15.5–6.5 2x=9 x=4.5
解答如下:5x1.3+2x=15.5 6.5+2x=15.5 2x=15.5-6.5 2x=9 x=9/2 x=4.5
2X=15.5-5x1.3=9 X=4.5
2x=15.5-5*1.3 x=(15.5-5*1.3)2 x=4.5
5*1.3+2x=15.5 怎么解方程? -
2x=15.5-5×1.3 2x=9 X=4.5
图,
小学五年级简便小数点混合运算题 -
5×1.3-2x=5.5 24x+6x=63.6 5.6x+4.4x=5.2 小学五年级四则混合运算题! 1. 3/7 × 49/9 - 4/3 2. 8/9 × 15/36 + 1/27 3. 12× 5/6 – 2/9 ×3 4. 8× 5/4 + 1/4 5. 6÷ 3/8 – 3/8 ÷6 6. 4/7 × 5/9 + 3/7 × 5/9 7. 5/2 -( 3/2 + 4/5 ) 8到此结束了?。
11*2x=15.5 22x=15.5 x=15.5/22=(31/2)/22=31/44
2x+3x=15.5的解是什么? -
2x+3x=15.5 5×=15.5 ×=3.1
用算式各部分之间的关系来解,因为:被减数=差+减数,所以:解:2x-2.5=15.5 2x=15.5+2.5 2x=18 x=18÷2 x=9