Question

x-3/7x=4/5求x是多少

Answer 1

方法如下图所示，请作参考，祝学习愉快：

Answer 2

1. 2x+8=16, x=42, x÷5=10, x=503, x+7x=88, x=114, 9x-3x=66, x=115, 6x-8=4, x= 26, 5x+x=9, x=1.57, 10x+90=290, x=208, 7x+7=14, x=19, 6x-6=0, x=110, 5x+6=11, x= 111, 2x -8=10, x=912, 12x-8=4, x=113, (x-5)÷6=7, x=4714, 3x+7=28, x=715, 3x-7= 26, x=1116, 9x-x=16, x=217, 24x+x=50, x=218, 7x-8=20, x=419, 3x-9=30, x=1320, 6x+6= 12, x=121, 3x-3 =12, x=522, 5x-3x=4, x=223, 2x+16=19, x=1.524, 5x+8=19, x=2.225, 14-6x= 8, x=126, 15+6x=27, x=227, 5-8x=4, x=0.12528, 7x+8=15, x=1

Answer 3

根据题目，列算式如下：x-3/7x＝5/144/7x=5/14x=5/14×7/4x=5/8答：方程的解是5/8。

Answer 4

方程左边合并同类项可以得到（1-3/7）x=4/5，也就是4x/7=4/5，解得x=7/5。

Answer 5

X-3/7 X=4/5.求X是多少？
过程如下。
X-3/7 X=4/5.
解 (1-3/7)x=4/5
4/7x=4/5
x=4/5÷4/7
x=7/5