what is the solution 1/5x+5=19-1/2x?
回答 (4)
2016-02-21 3:36 pm
1/5x + 5 =19 - 1/2x
1/5x + 1/2x = 14
2x + 5x = 140
7x = 140
x = 20
1/5x + 1/2x = 14
2x + 5x = 140
7x = 140
x = 20
2016-02-21 3:30 pm
Should, I assume, be shown as :-
(1/5) x + 5 = 19 - (1/2) x
2x + 50 = 190 - 5x
7x = 140
x = 20
(1/5) x + 5 = 19 - (1/2) x
2x + 50 = 190 - 5x
7x = 140
x = 20
2016-02-21 2:31 pm
(1/5)x + 5 = 19 - (1/2) x
(1/5)x + (1/2)x = 19 - 5
(2/10)x + (5/10)x = 14
(7/10)x = 14
x = 14 * (10/7)
x = 20
(1/5)x + (1/2)x = 19 - 5
(2/10)x + (5/10)x = 14
(7/10)x = 14
x = 14 * (10/7)
x = 20
2016-02-21 2:30 pm
1/5x + 5 = 19 - 1/2x
2x/10 + 5 = 19 - 5x/10
7x/10 = 14
x = 14(10/7) = 20
2x/10 + 5 = 19 - 5x/10
7x/10 = 14
x = 14(10/7) = 20
收錄日期: 2021-04-18 14:29:06
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