Solve for x??????????

2008-10-29 7:49 am
7x - 3/8 = 6x - 5/8


What is X?????????

回答 (8)

2008-10-29 7:51 am
✔ 最佳答案
7x -3/8 = 6x -5/8

add 3/8 to both sides
7x = 6x -2/8
subtract 6x from both sides
x = -2/8 = -1/4
2016-11-07 9:43 pm
To be solved: 4x(x-7)-5x(x-6)=-3 STEP a million: escalate 4x(x-7) - 5x(x-6) = -3 4x^2 - 28x - 5x^2+30x = -3 STEP 2: SIMPLIFY in reality assemble and upload the like words (4x^2 - 5x^2) + (-28x + 30x) + 3 = 0 -x^2 + 2x + 3 = 0 Now this is a quadratic in x STEP 3: remedy -x^2 + 2x + 3 = 0 you need to discover the climate that could supply you a made of -3 and addition of two i.e., x1*x2 = -3 (a million) x1+x2 = 2 (2) the place x1 and x2 are your recommendations To mutually fulfill equations (a million) and (2) x1 = 3 and x2 = -a million now to envision x1*x2 = 3*-a million = -3 x1 + x2 = 3 + (-a million) = 2 This now solves your equation for x as x = 3 or -a million
2008-10-29 12:26 pm
7x - 3/8 = 6x - 5/8
7x - 6x = 3/8 - 5/8
x = -2/8
x = -1/4 (-0.25)
2008-10-29 8:42 am
x = 3/8 - 5/8
x = - 2/8
x = - 1/4
2008-10-29 7:55 am
7x-6x = 5/8 + 3/8
x = 1
2008-10-29 7:53 am
7x - 3/8 = 6x - 5/8

isolate the x terms to one side and the fractions to the other:
7x-6x = -5/8 + 3/8
x = -2/8 = -1/4
2008-10-29 8:10 am
7x-3/8=6x-5/8 ----- (1)

7x-6x = 3/8+5/8

x = 8/8

x = 1
參考: Verification: Put x = 1 in the equation (1) 7(1)-3/8 = 6(1) -5/8 7-3/8 = 6-5/8 By Taking LCM 56/8 - 3/8 = 48/8 -5/8 53/8 = 53/8 Therefore,X= 1
2008-10-29 7:53 am
x = -1/4


收錄日期: 2021-05-01 11:25:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081028234913AA9QnDt

檢視 Wayback Machine 備份